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phoenix |
/* cs89x0.c: A Crystal Semiconductor (Now Cirrus Logic) CS89[02]0
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* driver for linux.
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*/
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/*
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Written 1996 by Russell Nelson, with reference to skeleton.c
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written 1993-1994 by Donald Becker.
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This software may be used and distributed according to the terms
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of the GNU General Public License, incorporated herein by reference.
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The author may be reached at nelson@crynwr.com, Crynwr
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Software, 521 Pleasant Valley Rd., Potsdam, NY 13676
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Changelog:
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Mike Cruse : mcruse@cti-ltd.com
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: Changes for Linux 2.0 compatibility.
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: Added dev_id parameter in net_interrupt(),
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: request_irq() and free_irq(). Just NULL for now.
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Mike Cruse : Added MOD_INC_USE_COUNT and MOD_DEC_USE_COUNT macros
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: in net_open() and net_close() so kerneld would know
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: that the module is in use and wouldn't eject the
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: driver prematurely.
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Mike Cruse : Rewrote init_module() and cleanup_module using 8390.c
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: as an example. Disabled autoprobing in init_module(),
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: not a good thing to do to other devices while Linux
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: is running from all accounts.
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Russ Nelson : Jul 13 1998. Added RxOnly DMA support.
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Melody Lee : Aug 10 1999. Changes for Linux 2.2.5 compatibility.
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: email: ethernet@crystal.cirrus.com
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Alan Cox : Removed 1.2 support, added 2.1 extra counters.
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Andrew Morton : andrewm@uow.edu.au
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: Kernel 2.3.48
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: Handle kmalloc() failures
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: Other resource allocation fixes
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: Add SMP locks
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: Integrate Russ Nelson's ALLOW_DMA functionality back in.
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: If ALLOW_DMA is true, make DMA runtime selectable
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: Folded in changes from Cirrus (Melody Lee
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: <klee@crystal.cirrus.com>)
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: Don't call netif_wake_queue() in net_send_packet()
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: Fixed an out-of-mem bug in dma_rx()
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: Updated Documentation/cs89x0.txt
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Andrew Morton : andrewm@uow.edu.au / Kernel 2.3.99-pre1
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: Use skb_reserve to longword align IP header (two places)
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: Remove a delay loop from dma_rx()
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: Replace '100' with HZ
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: Clean up a couple of skb API abuses
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: Added 'cs89x0_dma=N' kernel boot option
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: Correctly initialise lp->lock in non-module compile
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Andrew Morton : andrewm@uow.edu.au / Kernel 2.3.99-pre4-1
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: MOD_INC/DEC race fix (see
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: http://www.uwsg.indiana.edu/hypermail/linux/kernel/0003.3/1532.html)
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Andrew Morton : andrewm@uow.edu.au / Kernel 2.4.0-test7-pre2
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: Enhanced EEPROM support to cover more devices,
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: abstracted IRQ mapping to support CONFIG_ARCH_CLPS7500 arch
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: (Jason Gunthorpe <jgg@ualberta.ca>)
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Andrew Morton : Kernel 2.4.0-test11-pre4
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: Use dev->name in request_*() (Andrey Panin)
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: Fix an error-path memleak in init_module()
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: Preserve return value from request_irq()
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: Fix type of `media' module parm (Keith Owens)
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: Use SET_MODULE_OWNER()
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: Tidied up strange request_irq() abuse in net_open().
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Andrew Morton : Kernel 2.4.3-pre1
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: Request correct number of pages for DMA (Hugh Dickens)
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: Select PP_ChipID _after_ unregister_netdev in cleanup_module()
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: because unregister_netdev() calls get_stats.
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: Make `version[]' __initdata
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: Uninlined the read/write reg/word functions.
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Oskar Schirmer : oskar@scara.com
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: HiCO.SH4 (superh) support added (irq#1, cs89x0_media=)
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*/
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/* Always include 'config.h' first in case the user wants to turn on
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or override something. */
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#include <linux/config.h>
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#include <linux/module.h>
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#include <linux/version.h>
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/*
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* Set this to zero to disable DMA code
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*
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* Note that even if DMA is turned off we still support the 'dma' and 'use_dma'
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* module options so we don't break any startup scripts.
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*/
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#define ALLOW_DMA 1
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/*
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* Set this to zero to remove all the debug statements via
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* dead code elimination
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*/
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#define DEBUGGING 1
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/*
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Sources:
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Crynwr packet driver epktisa.
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Crystal Semiconductor data sheets.
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*/
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/types.h>
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#include <linux/fcntl.h>
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#include <linux/interrupt.h>
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#include <linux/ptrace.h>
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#include <linux/ioport.h>
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#include <linux/in.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/init.h>
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#include <asm/system.h>
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#include <asm/bitops.h>
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#include <asm/io.h>
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#if ALLOW_DMA
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#include <asm/dma.h>
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#endif
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#include <linux/errno.h>
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#include <linux/spinlock.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/skbuff.h>
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#include "cs89x0.h"
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static char version[] __initdata =
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"cs89x0.c: v2.4.3-pre1 Russell Nelson <nelson@crynwr.com>, Andrew Morton <andrewm@uow.edu.au>\n";
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/* First, a few definitions that the brave might change.
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A zero-terminated list of I/O addresses to be probed. Some special flags..
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Addr & 1 = Read back the address port, look for signature and reset
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the page window before probing
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Addr & 3 = Reset the page window and probe
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The CLPS eval board has the Cirrus chip at 0x80090300, in ARM IO space,
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but it is possible that a Cirrus board could be plugged into the ISA
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slots. */
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/* The cs8900 has 4 IRQ pins, software selectable. cs8900_irq_map maps
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them to system IRQ numbers. This mapping is card specific and is set to
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the configuration of the Cirrus Eval board for this chip. */
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#ifdef CONFIG_ARCH_CLPS7500
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static unsigned int netcard_portlist[] __initdata =
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{ 0x80090303, 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0};
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static unsigned int cs8900_irq_map[] = {12,0,0,0};
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#elif defined(CONFIG_SH_HICOSH4)
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static unsigned int netcard_portlist[] __initdata =
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{ 0x0300, 0};
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static unsigned int cs8900_irq_map[] = {1,0,0,0};
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#else
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static unsigned int netcard_portlist[] __initdata =
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{ 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0};
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static unsigned int cs8900_irq_map[] = {10,11,12,5};
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#endif
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#if DEBUGGING
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static unsigned int net_debug = DEBUGGING;
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#else
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#define net_debug 0 /* gcc will remove all the debug code for us */
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#endif
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/* The number of low I/O ports used by the ethercard. */
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#define NETCARD_IO_EXTENT 16
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/* we allow the user to override various values normally set in the EEPROM */
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#define FORCE_RJ45 0x0001 /* pick one of these three */
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#define FORCE_AUI 0x0002
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#define FORCE_BNC 0x0004
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#define FORCE_AUTO 0x0010 /* pick one of these three */
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#define FORCE_HALF 0x0020
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#define FORCE_FULL 0x0030
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/* Information that need to be kept for each board. */
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struct net_local {
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struct net_device_stats stats;
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int chip_type; /* one of: CS8900, CS8920, CS8920M */
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char chip_revision; /* revision letter of the chip ('A'...) */
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int send_cmd; /* the proper send command: TX_NOW, TX_AFTER_381, or TX_AFTER_ALL */
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int auto_neg_cnf; /* auto-negotiation word from EEPROM */
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int adapter_cnf; /* adapter configuration from EEPROM */
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int isa_config; /* ISA configuration from EEPROM */
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int irq_map; /* IRQ map from EEPROM */
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int rx_mode; /* what mode are we in? 0, RX_MULTCAST_ACCEPT, or RX_ALL_ACCEPT */
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int curr_rx_cfg; /* a copy of PP_RxCFG */
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int linectl; /* either 0 or LOW_RX_SQUELCH, depending on configuration. */
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int send_underrun; /* keep track of how many underruns in a row we get */
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int force; /* force various values; see FORCE* above. */
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spinlock_t lock;
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#if ALLOW_DMA
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int use_dma; /* Flag: we're using dma */
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int dma; /* DMA channel */
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int dmasize; /* 16 or 64 */
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unsigned char *dma_buff; /* points to the beginning of the buffer */
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unsigned char *end_dma_buff; /* points to the end of the buffer */
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unsigned char *rx_dma_ptr; /* points to the next packet */
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#endif
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};
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/* Index to functions, as function prototypes. */
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extern int cs89x0_probe(struct net_device *dev);
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static int cs89x0_probe1(struct net_device *dev, int ioaddr);
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static int net_open(struct net_device *dev);
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static int net_send_packet(struct sk_buff *skb, struct net_device *dev);
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static void net_interrupt(int irq, void *dev_id, struct pt_regs *regs);
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static void set_multicast_list(struct net_device *dev);
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static void net_timeout(struct net_device *dev);
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static void net_rx(struct net_device *dev);
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static int net_close(struct net_device *dev);
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static struct net_device_stats *net_get_stats(struct net_device *dev);
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static void reset_chip(struct net_device *dev);
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static int get_eeprom_data(struct net_device *dev, int off, int len, int *buffer);
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static int get_eeprom_cksum(int off, int len, int *buffer);
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static int set_mac_address(struct net_device *dev, void *addr);
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static void count_rx_errors(int status, struct net_local *lp);
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#if ALLOW_DMA
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static void get_dma_channel(struct net_device *dev);
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static void release_dma_buff(struct net_local *lp);
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#endif
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/* Example routines you must write ;->. */
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#define tx_done(dev) 1
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/*
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* Permit 'cs89x0_dma=N' in the kernel boot environment
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*/
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#if !defined(MODULE) && (ALLOW_DMA != 0)
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static int g_cs89x0_dma;
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static int __init dma_fn(char *str)
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{
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g_cs89x0_dma = simple_strtol(str,NULL,0);
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return 1;
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}
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__setup("cs89x0_dma=", dma_fn);
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#endif /* !defined(MODULE) && (ALLOW_DMA != 0) */
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#ifndef MODULE
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static int g_cs89x0_media__force;
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static int __init media_fn(char *str)
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{
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if (!strcmp(str, "rj45")) g_cs89x0_media__force = FORCE_RJ45;
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else if (!strcmp(str, "aui")) g_cs89x0_media__force = FORCE_AUI;
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else if (!strcmp(str, "bnc")) g_cs89x0_media__force = FORCE_BNC;
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return 1;
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}
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__setup("cs89x0_media=", media_fn);
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#endif
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/* Check for a network adaptor of this type, and return '0' iff one exists.
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If dev->base_addr == 0, probe all likely locations.
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If dev->base_addr == 1, always return failure.
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If dev->base_addr == 2, allocate space for the device and return success
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(detachable devices only).
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Return 0 on success.
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*/
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int __init cs89x0_probe(struct net_device *dev)
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{
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int i;
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int base_addr = dev ? dev->base_addr : 0;
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SET_MODULE_OWNER(dev);
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if (net_debug)
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printk("cs89x0:cs89x0_probe(0x%x)\n", base_addr);
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if (base_addr > 0x1ff) /* Check a single specified location. */
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return cs89x0_probe1(dev, base_addr);
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else if (base_addr != 0) /* Don't probe at all. */
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return -ENXIO;
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for (i = 0; netcard_portlist[i]; i++) {
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if (cs89x0_probe1(dev, netcard_portlist[i]) == 0)
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return 0;
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}
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printk(KERN_WARNING "cs89x0: no cs8900 or cs8920 detected. Be sure to disable PnP with SETUP\n");
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return -ENODEV;
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}
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static int
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readreg(struct net_device *dev, int portno)
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{
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outw(portno, dev->base_addr + ADD_PORT);
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return inw(dev->base_addr + DATA_PORT);
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}
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static void
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writereg(struct net_device *dev, int portno, int value)
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{
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outw(portno, dev->base_addr + ADD_PORT);
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outw(value, dev->base_addr + DATA_PORT);
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}
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static int
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readword(struct net_device *dev, int portno)
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{
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return inw(dev->base_addr + portno);
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}
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static void
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writeword(struct net_device *dev, int portno, int value)
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{
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outw(value, dev->base_addr + portno);
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}
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static int __init
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wait_eeprom_ready(struct net_device *dev)
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{
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332 |
|
|
int timeout = jiffies;
|
333 |
|
|
/* check to see if the EEPROM is ready, a timeout is used -
|
334 |
|
|
just in case EEPROM is ready when SI_BUSY in the
|
335 |
|
|
PP_SelfST is clear */
|
336 |
|
|
while(readreg(dev, PP_SelfST) & SI_BUSY)
|
337 |
|
|
if (jiffies - timeout >= 40)
|
338 |
|
|
return -1;
|
339 |
|
|
return 0;
|
340 |
|
|
}
|
341 |
|
|
|
342 |
|
|
static int __init
|
343 |
|
|
get_eeprom_data(struct net_device *dev, int off, int len, int *buffer)
|
344 |
|
|
{
|
345 |
|
|
int i;
|
346 |
|
|
|
347 |
|
|
if (net_debug > 3) printk("EEPROM data from %x for %x:\n",off,len);
|
348 |
|
|
for (i = 0; i < len; i++) {
|
349 |
|
|
if (wait_eeprom_ready(dev) < 0) return -1;
|
350 |
|
|
/* Now send the EEPROM read command and EEPROM location to read */
|
351 |
|
|
writereg(dev, PP_EECMD, (off + i) | EEPROM_READ_CMD);
|
352 |
|
|
if (wait_eeprom_ready(dev) < 0) return -1;
|
353 |
|
|
buffer[i] = readreg(dev, PP_EEData);
|
354 |
|
|
if (net_debug > 3) printk("%04x ", buffer[i]);
|
355 |
|
|
}
|
356 |
|
|
if (net_debug > 3) printk("\n");
|
357 |
|
|
return 0;
|
358 |
|
|
}
|
359 |
|
|
|
360 |
|
|
static int __init
|
361 |
|
|
get_eeprom_cksum(int off, int len, int *buffer)
|
362 |
|
|
{
|
363 |
|
|
int i, cksum;
|
364 |
|
|
|
365 |
|
|
cksum = 0;
|
366 |
|
|
for (i = 0; i < len; i++)
|
367 |
|
|
cksum += buffer[i];
|
368 |
|
|
cksum &= 0xffff;
|
369 |
|
|
if (cksum == 0)
|
370 |
|
|
return 0;
|
371 |
|
|
return -1;
|
372 |
|
|
}
|
373 |
|
|
|
374 |
|
|
/* This is the real probe routine. Linux has a history of friendly device
|
375 |
|
|
probes on the ISA bus. A good device probes avoids doing writes, and
|
376 |
|
|
verifies that the correct device exists and functions.
|
377 |
|
|
Return 0 on success.
|
378 |
|
|
*/
|
379 |
|
|
|
380 |
|
|
static int __init
|
381 |
|
|
cs89x0_probe1(struct net_device *dev, int ioaddr)
|
382 |
|
|
{
|
383 |
|
|
struct net_local *lp;
|
384 |
|
|
static unsigned version_printed;
|
385 |
|
|
int i;
|
386 |
|
|
unsigned rev_type = 0;
|
387 |
|
|
int eeprom_buff[CHKSUM_LEN];
|
388 |
|
|
int retval;
|
389 |
|
|
|
390 |
|
|
/* Initialize the device structure. */
|
391 |
|
|
if (dev->priv == NULL) {
|
392 |
|
|
dev->priv = kmalloc(sizeof(struct net_local), GFP_KERNEL);
|
393 |
|
|
if (dev->priv == 0) {
|
394 |
|
|
retval = -ENOMEM;
|
395 |
|
|
goto out;
|
396 |
|
|
}
|
397 |
|
|
lp = (struct net_local *)dev->priv;
|
398 |
|
|
memset(lp, 0, sizeof(*lp));
|
399 |
|
|
spin_lock_init(&lp->lock);
|
400 |
|
|
#if !defined(MODULE) && (ALLOW_DMA != 0)
|
401 |
|
|
if (g_cs89x0_dma) {
|
402 |
|
|
lp->use_dma = 1;
|
403 |
|
|
lp->dma = g_cs89x0_dma;
|
404 |
|
|
lp->dmasize = 16; /* Could make this an option... */
|
405 |
|
|
}
|
406 |
|
|
#endif
|
407 |
|
|
#ifndef MODULE
|
408 |
|
|
lp->force = g_cs89x0_media__force;
|
409 |
|
|
#endif
|
410 |
|
|
}
|
411 |
|
|
lp = (struct net_local *)dev->priv;
|
412 |
|
|
|
413 |
|
|
/* Grab the region so we can find another board if autoIRQ fails. */
|
414 |
|
|
if (!request_region(ioaddr & ~3, NETCARD_IO_EXTENT, dev->name)) {
|
415 |
|
|
printk(KERN_ERR "%s: request_region(0x%x, 0x%x) failed\n",
|
416 |
|
|
dev->name, ioaddr, NETCARD_IO_EXTENT);
|
417 |
|
|
retval = -EBUSY;
|
418 |
|
|
goto out1;
|
419 |
|
|
}
|
420 |
|
|
|
421 |
|
|
#ifdef CONFIG_SH_HICOSH4
|
422 |
|
|
/* truely reset the chip */
|
423 |
|
|
outw(0x0114, ioaddr + ADD_PORT);
|
424 |
|
|
outw(0x0040, ioaddr + DATA_PORT);
|
425 |
|
|
#endif
|
426 |
|
|
|
427 |
|
|
/* if they give us an odd I/O address, then do ONE write to
|
428 |
|
|
the address port, to get it back to address zero, where we
|
429 |
|
|
expect to find the EISA signature word. An IO with a base of 0x3
|
430 |
|
|
will skip the test for the ADD_PORT. */
|
431 |
|
|
if (ioaddr & 1) {
|
432 |
|
|
if (net_debug > 1)
|
433 |
|
|
printk(KERN_INFO "%s: odd ioaddr 0x%x\n", dev->name, ioaddr);
|
434 |
|
|
if ((ioaddr & 2) != 2)
|
435 |
|
|
if ((inw((ioaddr & ~3)+ ADD_PORT) & ADD_MASK) != ADD_SIG) {
|
436 |
|
|
printk(KERN_ERR "%s: bad signature 0x%x\n",
|
437 |
|
|
dev->name, inw((ioaddr & ~3)+ ADD_PORT));
|
438 |
|
|
retval = -ENODEV;
|
439 |
|
|
goto out2;
|
440 |
|
|
}
|
441 |
|
|
ioaddr &= ~3;
|
442 |
|
|
outw(PP_ChipID, ioaddr + ADD_PORT);
|
443 |
|
|
}
|
444 |
|
|
printk("PP_addr=0x%x\n", inw(ioaddr + ADD_PORT));
|
445 |
|
|
|
446 |
|
|
if (inw(ioaddr + DATA_PORT) != CHIP_EISA_ID_SIG) {
|
447 |
|
|
printk(KERN_ERR "%s: incorrect signature 0x%x\n",
|
448 |
|
|
dev->name, inw(ioaddr + DATA_PORT));
|
449 |
|
|
retval = -ENODEV;
|
450 |
|
|
goto out2;
|
451 |
|
|
}
|
452 |
|
|
|
453 |
|
|
/* Fill in the 'dev' fields. */
|
454 |
|
|
dev->base_addr = ioaddr;
|
455 |
|
|
|
456 |
|
|
/* get the chip type */
|
457 |
|
|
rev_type = readreg(dev, PRODUCT_ID_ADD);
|
458 |
|
|
lp->chip_type = rev_type &~ REVISON_BITS;
|
459 |
|
|
lp->chip_revision = ((rev_type & REVISON_BITS) >> 8) + 'A';
|
460 |
|
|
|
461 |
|
|
/* Check the chip type and revision in order to set the correct send command
|
462 |
|
|
CS8920 revision C and CS8900 revision F can use the faster send. */
|
463 |
|
|
lp->send_cmd = TX_AFTER_381;
|
464 |
|
|
if (lp->chip_type == CS8900 && lp->chip_revision >= 'F')
|
465 |
|
|
lp->send_cmd = TX_NOW;
|
466 |
|
|
if (lp->chip_type != CS8900 && lp->chip_revision >= 'C')
|
467 |
|
|
lp->send_cmd = TX_NOW;
|
468 |
|
|
|
469 |
|
|
if (net_debug && version_printed++ == 0)
|
470 |
|
|
printk(version);
|
471 |
|
|
|
472 |
|
|
printk(KERN_INFO "%s: cs89%c0%s rev %c found at %#3lx ",
|
473 |
|
|
dev->name,
|
474 |
|
|
lp->chip_type==CS8900?'0':'2',
|
475 |
|
|
lp->chip_type==CS8920M?"M":"",
|
476 |
|
|
lp->chip_revision,
|
477 |
|
|
dev->base_addr);
|
478 |
|
|
|
479 |
|
|
reset_chip(dev);
|
480 |
|
|
|
481 |
|
|
/* Here we read the current configuration of the chip. If there
|
482 |
|
|
is no Extended EEPROM then the idea is to not disturb the chip
|
483 |
|
|
configuration, it should have been correctly setup by automatic
|
484 |
|
|
EEPROM read on reset. So, if the chip says it read the EEPROM
|
485 |
|
|
the driver will always do *something* instead of complain that
|
486 |
|
|
adapter_cnf is 0. */
|
487 |
|
|
|
488 |
|
|
#ifdef CONFIG_SH_HICOSH4
|
489 |
|
|
if (1) {
|
490 |
|
|
/* For the HiCO.SH4 board, things are different: we don't
|
491 |
|
|
have EEPROM, but there is some data in flash, so we go
|
492 |
|
|
get it there directly (MAC). */
|
493 |
|
|
__u16 *confd;
|
494 |
|
|
short cnt;
|
495 |
|
|
if (((* (volatile __u32 *) 0xa0013ff0) & 0x00ffffff)
|
496 |
|
|
== 0x006c3000) {
|
497 |
|
|
confd = (__u16*) 0xa0013fc0;
|
498 |
|
|
} else {
|
499 |
|
|
confd = (__u16*) 0xa001ffc0;
|
500 |
|
|
}
|
501 |
|
|
cnt = (*confd++ & 0x00ff) >> 1;
|
502 |
|
|
while (--cnt > 0) {
|
503 |
|
|
__u16 j = *confd++;
|
504 |
|
|
|
505 |
|
|
switch (j & 0x0fff) {
|
506 |
|
|
case PP_IA:
|
507 |
|
|
for (i = 0; i < ETH_ALEN/2; i++) {
|
508 |
|
|
dev->dev_addr[i*2] = confd[i] & 0xFF;
|
509 |
|
|
dev->dev_addr[i*2+1] = confd[i] >> 8;
|
510 |
|
|
}
|
511 |
|
|
break;
|
512 |
|
|
}
|
513 |
|
|
j = (j >> 12) + 1;
|
514 |
|
|
confd += j;
|
515 |
|
|
cnt -= j;
|
516 |
|
|
}
|
517 |
|
|
} else
|
518 |
|
|
#endif
|
519 |
|
|
|
520 |
|
|
if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) ==
|
521 |
|
|
(EEPROM_OK|EEPROM_PRESENT)) {
|
522 |
|
|
/* Load the MAC. */
|
523 |
|
|
for (i=0; i < ETH_ALEN/2; i++) {
|
524 |
|
|
unsigned int Addr;
|
525 |
|
|
Addr = readreg(dev, PP_IA+i*2);
|
526 |
|
|
dev->dev_addr[i*2] = Addr & 0xFF;
|
527 |
|
|
dev->dev_addr[i*2+1] = Addr >> 8;
|
528 |
|
|
}
|
529 |
|
|
|
530 |
|
|
/* Load the Adapter Configuration.
|
531 |
|
|
Note: Barring any more specific information from some
|
532 |
|
|
other source (ie EEPROM+Schematics), we would not know
|
533 |
|
|
how to operate a 10Base2 interface on the AUI port.
|
534 |
|
|
However, since we do read the status of HCB1 and use
|
535 |
|
|
settings that always result in calls to control_dc_dc(dev,0)
|
536 |
|
|
a BNC interface should work if the enable pin
|
537 |
|
|
(dc/dc converter) is on HCB1. It will be called AUI
|
538 |
|
|
however. */
|
539 |
|
|
|
540 |
|
|
lp->adapter_cnf = 0;
|
541 |
|
|
i = readreg(dev, PP_LineCTL);
|
542 |
|
|
/* Preserve the setting of the HCB1 pin. */
|
543 |
|
|
if ((i & (HCB1 | HCB1_ENBL)) == (HCB1 | HCB1_ENBL))
|
544 |
|
|
lp->adapter_cnf |= A_CNF_DC_DC_POLARITY;
|
545 |
|
|
/* Save the sqelch bit */
|
546 |
|
|
if ((i & LOW_RX_SQUELCH) == LOW_RX_SQUELCH)
|
547 |
|
|
lp->adapter_cnf |= A_CNF_EXTND_10B_2 | A_CNF_LOW_RX_SQUELCH;
|
548 |
|
|
/* Check if the card is in 10Base-t only mode */
|
549 |
|
|
if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == 0)
|
550 |
|
|
lp->adapter_cnf |= A_CNF_10B_T | A_CNF_MEDIA_10B_T;
|
551 |
|
|
/* Check if the card is in AUI only mode */
|
552 |
|
|
if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUI_ONLY)
|
553 |
|
|
lp->adapter_cnf |= A_CNF_AUI | A_CNF_MEDIA_AUI;
|
554 |
|
|
/* Check if the card is in Auto mode. */
|
555 |
|
|
if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUTO_AUI_10BASET)
|
556 |
|
|
lp->adapter_cnf |= A_CNF_AUI | A_CNF_10B_T |
|
557 |
|
|
A_CNF_MEDIA_AUI | A_CNF_MEDIA_10B_T | A_CNF_MEDIA_AUTO;
|
558 |
|
|
|
559 |
|
|
if (net_debug > 1)
|
560 |
|
|
printk(KERN_INFO "%s: PP_LineCTL=0x%x, adapter_cnf=0x%x\n",
|
561 |
|
|
dev->name, i, lp->adapter_cnf);
|
562 |
|
|
|
563 |
|
|
/* IRQ. Other chips already probe, see below. */
|
564 |
|
|
if (lp->chip_type == CS8900)
|
565 |
|
|
lp->isa_config = readreg(dev, PP_CS8900_ISAINT) & INT_NO_MASK;
|
566 |
|
|
|
567 |
|
|
printk( "[Cirrus EEPROM] ");
|
568 |
|
|
}
|
569 |
|
|
|
570 |
|
|
printk("\n");
|
571 |
|
|
|
572 |
|
|
/* First check to see if an EEPROM is attached. */
|
573 |
|
|
#ifdef CONFIG_SH_HICOSH4 /* no EEPROM on HiCO, don't hazzle with it here */
|
574 |
|
|
if (1) {
|
575 |
|
|
printk(KERN_NOTICE "cs89x0: No EEPROM on HiCO.SH4\n");
|
576 |
|
|
} else
|
577 |
|
|
#endif
|
578 |
|
|
if ((readreg(dev, PP_SelfST) & EEPROM_PRESENT) == 0)
|
579 |
|
|
printk(KERN_WARNING "cs89x0: No EEPROM, relying on command line....\n");
|
580 |
|
|
else if (get_eeprom_data(dev, START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) {
|
581 |
|
|
printk(KERN_WARNING "\ncs89x0: EEPROM read failed, relying on command line.\n");
|
582 |
|
|
} else if (get_eeprom_cksum(START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) {
|
583 |
|
|
/* Check if the chip was able to read its own configuration starting
|
584 |
|
|
at 0 in the EEPROM*/
|
585 |
|
|
if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) !=
|
586 |
|
|
(EEPROM_OK|EEPROM_PRESENT))
|
587 |
|
|
printk(KERN_WARNING "cs89x0: Extended EEPROM checksum bad and no Cirrus EEPROM, relying on command line\n");
|
588 |
|
|
|
589 |
|
|
} else {
|
590 |
|
|
/* This reads an extended EEPROM that is not documented
|
591 |
|
|
in the CS8900 datasheet. */
|
592 |
|
|
|
593 |
|
|
/* get transmission control word but keep the autonegotiation bits */
|
594 |
|
|
if (!lp->auto_neg_cnf) lp->auto_neg_cnf = eeprom_buff[AUTO_NEG_CNF_OFFSET/2];
|
595 |
|
|
/* Store adapter configuration */
|
596 |
|
|
if (!lp->adapter_cnf) lp->adapter_cnf = eeprom_buff[ADAPTER_CNF_OFFSET/2];
|
597 |
|
|
/* Store ISA configuration */
|
598 |
|
|
lp->isa_config = eeprom_buff[ISA_CNF_OFFSET/2];
|
599 |
|
|
dev->mem_start = eeprom_buff[PACKET_PAGE_OFFSET/2] << 8;
|
600 |
|
|
|
601 |
|
|
/* eeprom_buff has 32-bit ints, so we can't just memcpy it */
|
602 |
|
|
/* store the initial memory base address */
|
603 |
|
|
for (i = 0; i < ETH_ALEN/2; i++) {
|
604 |
|
|
dev->dev_addr[i*2] = eeprom_buff[i];
|
605 |
|
|
dev->dev_addr[i*2+1] = eeprom_buff[i] >> 8;
|
606 |
|
|
}
|
607 |
|
|
if (net_debug > 1)
|
608 |
|
|
printk(KERN_DEBUG "%s: new adapter_cnf: 0x%x\n",
|
609 |
|
|
dev->name, lp->adapter_cnf);
|
610 |
|
|
}
|
611 |
|
|
|
612 |
|
|
/* allow them to force multiple transceivers. If they force multiple, autosense */
|
613 |
|
|
{
|
614 |
|
|
int count = 0;
|
615 |
|
|
if (lp->force & FORCE_RJ45) {lp->adapter_cnf |= A_CNF_10B_T; count++; }
|
616 |
|
|
if (lp->force & FORCE_AUI) {lp->adapter_cnf |= A_CNF_AUI; count++; }
|
617 |
|
|
if (lp->force & FORCE_BNC) {lp->adapter_cnf |= A_CNF_10B_2; count++; }
|
618 |
|
|
if (count > 1) {lp->adapter_cnf |= A_CNF_MEDIA_AUTO; }
|
619 |
|
|
else if (lp->force & FORCE_RJ45){lp->adapter_cnf |= A_CNF_MEDIA_10B_T; }
|
620 |
|
|
else if (lp->force & FORCE_AUI) {lp->adapter_cnf |= A_CNF_MEDIA_AUI; }
|
621 |
|
|
else if (lp->force & FORCE_BNC) {lp->adapter_cnf |= A_CNF_MEDIA_10B_2; }
|
622 |
|
|
}
|
623 |
|
|
|
624 |
|
|
if (net_debug > 1)
|
625 |
|
|
printk(KERN_DEBUG "%s: after force 0x%x, adapter_cnf=0x%x\n",
|
626 |
|
|
dev->name, lp->force, lp->adapter_cnf);
|
627 |
|
|
|
628 |
|
|
/* FIXME: We don't let you set dc-dc polarity or low RX squelch from the command line: add it here */
|
629 |
|
|
|
630 |
|
|
/* FIXME: We don't let you set the IMM bit from the command line: add it to lp->auto_neg_cnf here */
|
631 |
|
|
|
632 |
|
|
/* FIXME: we don't set the Ethernet address on the command line. Use
|
633 |
|
|
ifconfig IFACE hw ether AABBCCDDEEFF */
|
634 |
|
|
|
635 |
|
|
printk(KERN_INFO "cs89x0 media %s%s%s",
|
636 |
|
|
(lp->adapter_cnf & A_CNF_10B_T)?"RJ-45,":"",
|
637 |
|
|
(lp->adapter_cnf & A_CNF_AUI)?"AUI,":"",
|
638 |
|
|
(lp->adapter_cnf & A_CNF_10B_2)?"BNC,":"");
|
639 |
|
|
|
640 |
|
|
lp->irq_map = 0xffff;
|
641 |
|
|
|
642 |
|
|
/* If this is a CS8900 then no pnp soft */
|
643 |
|
|
if (lp->chip_type != CS8900 &&
|
644 |
|
|
/* Check if the ISA IRQ has been set */
|
645 |
|
|
(i = readreg(dev, PP_CS8920_ISAINT) & 0xff,
|
646 |
|
|
(i != 0 && i < CS8920_NO_INTS))) {
|
647 |
|
|
if (!dev->irq)
|
648 |
|
|
dev->irq = i;
|
649 |
|
|
} else {
|
650 |
|
|
i = lp->isa_config & INT_NO_MASK;
|
651 |
|
|
if (lp->chip_type == CS8900) {
|
652 |
|
|
/* Translate the IRQ using the IRQ mapping table. */
|
653 |
|
|
if (i >= sizeof(cs8900_irq_map)/sizeof(cs8900_irq_map[0]))
|
654 |
|
|
printk("\ncs89x0: invalid ISA interrupt number %d\n", i);
|
655 |
|
|
else
|
656 |
|
|
i = cs8900_irq_map[i];
|
657 |
|
|
|
658 |
|
|
lp->irq_map = CS8900_IRQ_MAP; /* fixed IRQ map for CS8900 */
|
659 |
|
|
} else {
|
660 |
|
|
int irq_map_buff[IRQ_MAP_LEN/2];
|
661 |
|
|
|
662 |
|
|
if (get_eeprom_data(dev, IRQ_MAP_EEPROM_DATA,
|
663 |
|
|
IRQ_MAP_LEN/2,
|
664 |
|
|
irq_map_buff) >= 0) {
|
665 |
|
|
if ((irq_map_buff[0] & 0xff) == PNP_IRQ_FRMT)
|
666 |
|
|
lp->irq_map = (irq_map_buff[0]>>8) | (irq_map_buff[1] << 8);
|
667 |
|
|
}
|
668 |
|
|
}
|
669 |
|
|
if (!dev->irq)
|
670 |
|
|
dev->irq = i;
|
671 |
|
|
}
|
672 |
|
|
|
673 |
|
|
printk(" IRQ %d", dev->irq);
|
674 |
|
|
|
675 |
|
|
#if ALLOW_DMA
|
676 |
|
|
if (lp->use_dma) {
|
677 |
|
|
get_dma_channel(dev);
|
678 |
|
|
printk(", DMA %d", dev->dma);
|
679 |
|
|
}
|
680 |
|
|
else
|
681 |
|
|
#endif
|
682 |
|
|
{
|
683 |
|
|
printk(", programmed I/O");
|
684 |
|
|
}
|
685 |
|
|
|
686 |
|
|
/* print the ethernet address. */
|
687 |
|
|
printk(", MAC");
|
688 |
|
|
for (i = 0; i < ETH_ALEN; i++)
|
689 |
|
|
{
|
690 |
|
|
printk("%c%02x", i ? ':' : ' ', dev->dev_addr[i]);
|
691 |
|
|
}
|
692 |
|
|
|
693 |
|
|
dev->open = net_open;
|
694 |
|
|
dev->stop = net_close;
|
695 |
|
|
dev->tx_timeout = net_timeout;
|
696 |
|
|
dev->watchdog_timeo = HZ;
|
697 |
|
|
dev->hard_start_xmit = net_send_packet;
|
698 |
|
|
dev->get_stats = net_get_stats;
|
699 |
|
|
dev->set_multicast_list = set_multicast_list;
|
700 |
|
|
dev->set_mac_address = set_mac_address;
|
701 |
|
|
|
702 |
|
|
/* Fill in the fields of the device structure with ethernet values. */
|
703 |
|
|
ether_setup(dev);
|
704 |
|
|
|
705 |
|
|
printk("\n");
|
706 |
|
|
if (net_debug)
|
707 |
|
|
printk("cs89x0_probe1() successful\n");
|
708 |
|
|
return 0;
|
709 |
|
|
out2:
|
710 |
|
|
release_region(ioaddr & ~3, NETCARD_IO_EXTENT);
|
711 |
|
|
out1:
|
712 |
|
|
kfree(dev->priv);
|
713 |
|
|
dev->priv = 0;
|
714 |
|
|
out:
|
715 |
|
|
return retval;
|
716 |
|
|
}
|
717 |
|
|
|
718 |
|
|
|
719 |
|
|
/*********************************
|
720 |
|
|
* This page contains DMA routines
|
721 |
|
|
**********************************/
|
722 |
|
|
|
723 |
|
|
#if ALLOW_DMA
|
724 |
|
|
|
725 |
|
|
#define dma_page_eq(ptr1, ptr2) ((long)(ptr1)>>17 == (long)(ptr2)>>17)
|
726 |
|
|
|
727 |
|
|
static void
|
728 |
|
|
get_dma_channel(struct net_device *dev)
|
729 |
|
|
{
|
730 |
|
|
struct net_local *lp = (struct net_local *)dev->priv;
|
731 |
|
|
|
732 |
|
|
if (lp->dma) {
|
733 |
|
|
dev->dma = lp->dma;
|
734 |
|
|
lp->isa_config |= ISA_RxDMA;
|
735 |
|
|
} else {
|
736 |
|
|
if ((lp->isa_config & ANY_ISA_DMA) == 0)
|
737 |
|
|
return;
|
738 |
|
|
dev->dma = lp->isa_config & DMA_NO_MASK;
|
739 |
|
|
if (lp->chip_type == CS8900)
|
740 |
|
|
dev->dma += 5;
|
741 |
|
|
if (dev->dma < 5 || dev->dma > 7) {
|
742 |
|
|
lp->isa_config &= ~ANY_ISA_DMA;
|
743 |
|
|
return;
|
744 |
|
|
}
|
745 |
|
|
}
|
746 |
|
|
return;
|
747 |
|
|
}
|
748 |
|
|
|
749 |
|
|
static void
|
750 |
|
|
write_dma(struct net_device *dev, int chip_type, int dma)
|
751 |
|
|
{
|
752 |
|
|
struct net_local *lp = (struct net_local *)dev->priv;
|
753 |
|
|
if ((lp->isa_config & ANY_ISA_DMA) == 0)
|
754 |
|
|
return;
|
755 |
|
|
if (chip_type == CS8900) {
|
756 |
|
|
writereg(dev, PP_CS8900_ISADMA, dma-5);
|
757 |
|
|
} else {
|
758 |
|
|
writereg(dev, PP_CS8920_ISADMA, dma);
|
759 |
|
|
}
|
760 |
|
|
}
|
761 |
|
|
|
762 |
|
|
static void
|
763 |
|
|
set_dma_cfg(struct net_device *dev)
|
764 |
|
|
{
|
765 |
|
|
struct net_local *lp = (struct net_local *)dev->priv;
|
766 |
|
|
|
767 |
|
|
if (lp->use_dma) {
|
768 |
|
|
if ((lp->isa_config & ANY_ISA_DMA) == 0) {
|
769 |
|
|
if (net_debug > 3)
|
770 |
|
|
printk("set_dma_cfg(): no DMA\n");
|
771 |
|
|
return;
|
772 |
|
|
}
|
773 |
|
|
if (lp->isa_config & ISA_RxDMA) {
|
774 |
|
|
lp->curr_rx_cfg |= RX_DMA_ONLY;
|
775 |
|
|
if (net_debug > 3)
|
776 |
|
|
printk("set_dma_cfg(): RX_DMA_ONLY\n");
|
777 |
|
|
} else {
|
778 |
|
|
lp->curr_rx_cfg |= AUTO_RX_DMA; /* not that we support it... */
|
779 |
|
|
if (net_debug > 3)
|
780 |
|
|
printk("set_dma_cfg(): AUTO_RX_DMA\n");
|
781 |
|
|
}
|
782 |
|
|
}
|
783 |
|
|
}
|
784 |
|
|
|
785 |
|
|
static int
|
786 |
|
|
dma_bufcfg(struct net_device *dev)
|
787 |
|
|
{
|
788 |
|
|
struct net_local *lp = (struct net_local *)dev->priv;
|
789 |
|
|
if (lp->use_dma)
|
790 |
|
|
return (lp->isa_config & ANY_ISA_DMA)? RX_DMA_ENBL : 0;
|
791 |
|
|
else
|
792 |
|
|
return 0;
|
793 |
|
|
}
|
794 |
|
|
|
795 |
|
|
static int
|
796 |
|
|
dma_busctl(struct net_device *dev)
|
797 |
|
|
{
|
798 |
|
|
int retval = 0;
|
799 |
|
|
struct net_local *lp = (struct net_local *)dev->priv;
|
800 |
|
|
if (lp->use_dma) {
|
801 |
|
|
if (lp->isa_config & ANY_ISA_DMA)
|
802 |
|
|
retval |= RESET_RX_DMA; /* Reset the DMA pointer */
|
803 |
|
|
if (lp->isa_config & DMA_BURST)
|
804 |
|
|
retval |= DMA_BURST_MODE; /* Does ISA config specify DMA burst ? */
|
805 |
|
|
if (lp->dmasize == 64)
|
806 |
|
|
retval |= RX_DMA_SIZE_64K; /* did they ask for 64K? */
|
807 |
|
|
retval |= MEMORY_ON; /* we need memory enabled to use DMA. */
|
808 |
|
|
}
|
809 |
|
|
return retval;
|
810 |
|
|
}
|
811 |
|
|
|
812 |
|
|
static void
|
813 |
|
|
dma_rx(struct net_device *dev)
|
814 |
|
|
{
|
815 |
|
|
struct net_local *lp = (struct net_local *)dev->priv;
|
816 |
|
|
struct sk_buff *skb;
|
817 |
|
|
int status, length;
|
818 |
|
|
unsigned char *bp = lp->rx_dma_ptr;
|
819 |
|
|
|
820 |
|
|
status = bp[0] + (bp[1]<<8);
|
821 |
|
|
length = bp[2] + (bp[3]<<8);
|
822 |
|
|
bp += 4;
|
823 |
|
|
if (net_debug > 5) {
|
824 |
|
|
printk( "%s: receiving DMA packet at %lx, status %x, length %x\n",
|
825 |
|
|
dev->name, (unsigned long)bp, status, length);
|
826 |
|
|
}
|
827 |
|
|
if ((status & RX_OK) == 0) {
|
828 |
|
|
count_rx_errors(status, lp);
|
829 |
|
|
goto skip_this_frame;
|
830 |
|
|
}
|
831 |
|
|
|
832 |
|
|
/* Malloc up new buffer. */
|
833 |
|
|
skb = dev_alloc_skb(length + 2);
|
834 |
|
|
if (skb == NULL) {
|
835 |
|
|
if (net_debug) /* I don't think we want to do this to a stressed system */
|
836 |
|
|
printk("%s: Memory squeeze, dropping packet.\n", dev->name);
|
837 |
|
|
lp->stats.rx_dropped++;
|
838 |
|
|
|
839 |
|
|
/* AKPM: advance bp to the next frame */
|
840 |
|
|
skip_this_frame:
|
841 |
|
|
bp += (length + 3) & ~3;
|
842 |
|
|
if (bp >= lp->end_dma_buff) bp -= lp->dmasize*1024;
|
843 |
|
|
lp->rx_dma_ptr = bp;
|
844 |
|
|
return;
|
845 |
|
|
}
|
846 |
|
|
skb_reserve(skb, 2); /* longword align L3 header */
|
847 |
|
|
skb->dev = dev;
|
848 |
|
|
|
849 |
|
|
if (bp + length > lp->end_dma_buff) {
|
850 |
|
|
int semi_cnt = lp->end_dma_buff - bp;
|
851 |
|
|
memcpy(skb_put(skb,semi_cnt), bp, semi_cnt);
|
852 |
|
|
memcpy(skb_put(skb,length - semi_cnt), lp->dma_buff,
|
853 |
|
|
length - semi_cnt);
|
854 |
|
|
} else {
|
855 |
|
|
memcpy(skb_put(skb,length), bp, length);
|
856 |
|
|
}
|
857 |
|
|
bp += (length + 3) & ~3;
|
858 |
|
|
if (bp >= lp->end_dma_buff) bp -= lp->dmasize*1024;
|
859 |
|
|
lp->rx_dma_ptr = bp;
|
860 |
|
|
|
861 |
|
|
if (net_debug > 3) {
|
862 |
|
|
printk( "%s: received %d byte DMA packet of type %x\n",
|
863 |
|
|
dev->name, length,
|
864 |
|
|
(skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]);
|
865 |
|
|
}
|
866 |
|
|
skb->protocol=eth_type_trans(skb,dev);
|
867 |
|
|
netif_rx(skb);
|
868 |
|
|
dev->last_rx = jiffies;
|
869 |
|
|
lp->stats.rx_packets++;
|
870 |
|
|
lp->stats.rx_bytes += length;
|
871 |
|
|
}
|
872 |
|
|
|
873 |
|
|
#endif /* ALLOW_DMA */
|
874 |
|
|
|
875 |
|
|
void __init reset_chip(struct net_device *dev)
|
876 |
|
|
{
|
877 |
|
|
struct net_local *lp = (struct net_local *)dev->priv;
|
878 |
|
|
int ioaddr = dev->base_addr;
|
879 |
|
|
int reset_start_time;
|
880 |
|
|
|
881 |
|
|
writereg(dev, PP_SelfCTL, readreg(dev, PP_SelfCTL) | POWER_ON_RESET);
|
882 |
|
|
|
883 |
|
|
/* wait 30 ms */
|
884 |
|
|
current->state = TASK_INTERRUPTIBLE;
|
885 |
|
|
schedule_timeout(30*HZ/1000);
|
886 |
|
|
|
887 |
|
|
if (lp->chip_type != CS8900) {
|
888 |
|
|
/* Hardware problem requires PNP registers to be reconfigured after a reset */
|
889 |
|
|
outw(PP_CS8920_ISAINT, ioaddr + ADD_PORT);
|
890 |
|
|
outb(dev->irq, ioaddr + DATA_PORT);
|
891 |
|
|
outb(0, ioaddr + DATA_PORT + 1);
|
892 |
|
|
|
893 |
|
|
outw(PP_CS8920_ISAMemB, ioaddr + ADD_PORT);
|
894 |
|
|
outb((dev->mem_start >> 16) & 0xff, ioaddr + DATA_PORT);
|
895 |
|
|
outb((dev->mem_start >> 8) & 0xff, ioaddr + DATA_PORT + 1);
|
896 |
|
|
}
|
897 |
|
|
/* Wait until the chip is reset */
|
898 |
|
|
reset_start_time = jiffies;
|
899 |
|
|
while( (readreg(dev, PP_SelfST) & INIT_DONE) == 0 && jiffies - reset_start_time < 2)
|
900 |
|
|
;
|
901 |
|
|
}
|
902 |
|
|
|
903 |
|
|
|
904 |
|
|
static void
|
905 |
|
|
control_dc_dc(struct net_device *dev, int on_not_off)
|
906 |
|
|
{
|
907 |
|
|
struct net_local *lp = (struct net_local *)dev->priv;
|
908 |
|
|
unsigned int selfcontrol;
|
909 |
|
|
int timenow = jiffies;
|
910 |
|
|
/* control the DC to DC convertor in the SelfControl register.
|
911 |
|
|
Note: This is hooked up to a general purpose pin, might not
|
912 |
|
|
always be a DC to DC convertor. */
|
913 |
|
|
|
914 |
|
|
selfcontrol = HCB1_ENBL; /* Enable the HCB1 bit as an output */
|
915 |
|
|
if (((lp->adapter_cnf & A_CNF_DC_DC_POLARITY) != 0) ^ on_not_off)
|
916 |
|
|
selfcontrol |= HCB1;
|
917 |
|
|
else
|
918 |
|
|
selfcontrol &= ~HCB1;
|
919 |
|
|
writereg(dev, PP_SelfCTL, selfcontrol);
|
920 |
|
|
|
921 |
|
|
/* Wait for the DC/DC converter to power up - 500ms */
|
922 |
|
|
while (jiffies - timenow < HZ)
|
923 |
|
|
;
|
924 |
|
|
}
|
925 |
|
|
|
926 |
|
|
#define DETECTED_NONE 0
|
927 |
|
|
#define DETECTED_RJ45H 1
|
928 |
|
|
#define DETECTED_RJ45F 2
|
929 |
|
|
#define DETECTED_AUI 3
|
930 |
|
|
#define DETECTED_BNC 4
|
931 |
|
|
|
932 |
|
|
static int
|
933 |
|
|
detect_tp(struct net_device *dev)
|
934 |
|
|
{
|
935 |
|
|
struct net_local *lp = (struct net_local *)dev->priv;
|
936 |
|
|
int timenow = jiffies;
|
937 |
|
|
int fdx;
|
938 |
|
|
|
939 |
|
|
if (net_debug > 1) printk("%s: Attempting TP\n", dev->name);
|
940 |
|
|
|
941 |
|
|
/* If connected to another full duplex capable 10-Base-T card the link pulses
|
942 |
|
|
seem to be lost when the auto detect bit in the LineCTL is set.
|
943 |
|
|
To overcome this the auto detect bit will be cleared whilst testing the
|
944 |
|
|
10-Base-T interface. This would not be necessary for the sparrow chip but
|
945 |
|
|
is simpler to do it anyway. */
|
946 |
|
|
writereg(dev, PP_LineCTL, lp->linectl &~ AUI_ONLY);
|
947 |
|
|
control_dc_dc(dev, 0);
|
948 |
|
|
|
949 |
|
|
/* Delay for the hardware to work out if the TP cable is present - 150ms */
|
950 |
|
|
for (timenow = jiffies; jiffies - timenow < 15; )
|
951 |
|
|
;
|
952 |
|
|
if ((readreg(dev, PP_LineST) & LINK_OK) == 0)
|
953 |
|
|
return DETECTED_NONE;
|
954 |
|
|
|
955 |
|
|
if (lp->chip_type == CS8900) {
|
956 |
|
|
switch (lp->force & 0xf0) {
|
957 |
|
|
#if 0
|
958 |
|
|
case FORCE_AUTO:
|
959 |
|
|
printk("%s: cs8900 doesn't autonegotiate\n",dev->name);
|
960 |
|
|
return DETECTED_NONE;
|
961 |
|
|
#endif
|
962 |
|
|
/* CS8900 doesn't support AUTO, change to HALF*/
|
963 |
|
|
case FORCE_AUTO:
|
964 |
|
|
lp->force &= ~FORCE_AUTO;
|
965 |
|
|
lp->force |= FORCE_HALF;
|
966 |
|
|
break;
|
967 |
|
|
case FORCE_HALF:
|
968 |
|
|
break;
|
969 |
|
|
case FORCE_FULL:
|
970 |
|
|
writereg(dev, PP_TestCTL, readreg(dev, PP_TestCTL) | FDX_8900);
|
971 |
|
|
break;
|
972 |
|
|
}
|
973 |
|
|
fdx = readreg(dev, PP_TestCTL) & FDX_8900;
|
974 |
|
|
} else {
|
975 |
|
|
switch (lp->force & 0xf0) {
|
976 |
|
|
case FORCE_AUTO:
|
977 |
|
|
lp->auto_neg_cnf = AUTO_NEG_ENABLE;
|
978 |
|
|
break;
|
979 |
|
|
case FORCE_HALF:
|
980 |
|
|
lp->auto_neg_cnf = 0;
|
981 |
|
|
break;
|
982 |
|
|
case FORCE_FULL:
|
983 |
|
|
lp->auto_neg_cnf = RE_NEG_NOW | ALLOW_FDX;
|
984 |
|
|
break;
|
985 |
|
|
}
|
986 |
|
|
|
987 |
|
|
writereg(dev, PP_AutoNegCTL, lp->auto_neg_cnf & AUTO_NEG_MASK);
|
988 |
|
|
|
989 |
|
|
if ((lp->auto_neg_cnf & AUTO_NEG_BITS) == AUTO_NEG_ENABLE) {
|
990 |
|
|
printk(KERN_INFO "%s: negotiating duplex...\n",dev->name);
|
991 |
|
|
while (readreg(dev, PP_AutoNegST) & AUTO_NEG_BUSY) {
|
992 |
|
|
if (jiffies - timenow > 4000) {
|
993 |
|
|
printk(KERN_ERR "**** Full / half duplex auto-negotiation timed out ****\n");
|
994 |
|
|
break;
|
995 |
|
|
}
|
996 |
|
|
}
|
997 |
|
|
}
|
998 |
|
|
fdx = readreg(dev, PP_AutoNegST) & FDX_ACTIVE;
|
999 |
|
|
}
|
1000 |
|
|
if (fdx)
|
1001 |
|
|
return DETECTED_RJ45F;
|
1002 |
|
|
else
|
1003 |
|
|
return DETECTED_RJ45H;
|
1004 |
|
|
}
|
1005 |
|
|
|
1006 |
|
|
/* send a test packet - return true if carrier bits are ok */
|
1007 |
|
|
static int
|
1008 |
|
|
send_test_pkt(struct net_device *dev)
|
1009 |
|
|
{
|
1010 |
|
|
char test_packet[] = { 0,0,0,0,0,0, 0,0,0,0,0,0,
|
1011 |
|
|
0, 46, /* A 46 in network order */
|
1012 |
|
|
0, 0, /* DSAP=0 & SSAP=0 fields */
|
1013 |
|
|
0xf3, 0 /* Control (Test Req + P bit set) */ };
|
1014 |
|
|
long timenow = jiffies;
|
1015 |
|
|
|
1016 |
|
|
writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_TX_ON);
|
1017 |
|
|
|
1018 |
|
|
memcpy(test_packet, dev->dev_addr, ETH_ALEN);
|
1019 |
|
|
memcpy(test_packet+ETH_ALEN, dev->dev_addr, ETH_ALEN);
|
1020 |
|
|
|
1021 |
|
|
writeword(dev, TX_CMD_PORT, TX_AFTER_ALL);
|
1022 |
|
|
writeword(dev, TX_LEN_PORT, ETH_ZLEN);
|
1023 |
|
|
|
1024 |
|
|
/* Test to see if the chip has allocated memory for the packet */
|
1025 |
|
|
while (jiffies - timenow < 5)
|
1026 |
|
|
if (readreg(dev, PP_BusST) & READY_FOR_TX_NOW)
|
1027 |
|
|
break;
|
1028 |
|
|
if (jiffies - timenow >= 5)
|
1029 |
|
|
return 0; /* this shouldn't happen */
|
1030 |
|
|
|
1031 |
|
|
/* Write the contents of the packet */
|
1032 |
|
|
outsw(dev->base_addr + TX_FRAME_PORT,test_packet,(ETH_ZLEN+1) >>1);
|
1033 |
|
|
|
1034 |
|
|
if (net_debug > 1) printk("Sending test packet ");
|
1035 |
|
|
/* wait a couple of jiffies for packet to be received */
|
1036 |
|
|
for (timenow = jiffies; jiffies - timenow < 3; )
|
1037 |
|
|
;
|
1038 |
|
|
if ((readreg(dev, PP_TxEvent) & TX_SEND_OK_BITS) == TX_OK) {
|
1039 |
|
|
if (net_debug > 1) printk("succeeded\n");
|
1040 |
|
|
return 1;
|
1041 |
|
|
}
|
1042 |
|
|
if (net_debug > 1) printk("failed\n");
|
1043 |
|
|
return 0;
|
1044 |
|
|
}
|
1045 |
|
|
|
1046 |
|
|
|
1047 |
|
|
static int
|
1048 |
|
|
detect_aui(struct net_device *dev)
|
1049 |
|
|
{
|
1050 |
|
|
struct net_local *lp = (struct net_local *)dev->priv;
|
1051 |
|
|
|
1052 |
|
|
if (net_debug > 1) printk("%s: Attempting AUI\n", dev->name);
|
1053 |
|
|
control_dc_dc(dev, 0);
|
1054 |
|
|
|
1055 |
|
|
writereg(dev, PP_LineCTL, (lp->linectl &~ AUTO_AUI_10BASET) | AUI_ONLY);
|
1056 |
|
|
|
1057 |
|
|
if (send_test_pkt(dev))
|
1058 |
|
|
return DETECTED_AUI;
|
1059 |
|
|
else
|
1060 |
|
|
return DETECTED_NONE;
|
1061 |
|
|
}
|
1062 |
|
|
|
1063 |
|
|
static int
|
1064 |
|
|
detect_bnc(struct net_device *dev)
|
1065 |
|
|
{
|
1066 |
|
|
struct net_local *lp = (struct net_local *)dev->priv;
|
1067 |
|
|
|
1068 |
|
|
if (net_debug > 1) printk("%s: Attempting BNC\n", dev->name);
|
1069 |
|
|
control_dc_dc(dev, 1);
|
1070 |
|
|
|
1071 |
|
|
writereg(dev, PP_LineCTL, (lp->linectl &~ AUTO_AUI_10BASET) | AUI_ONLY);
|
1072 |
|
|
|
1073 |
|
|
if (send_test_pkt(dev))
|
1074 |
|
|
return DETECTED_BNC;
|
1075 |
|
|
else
|
1076 |
|
|
return DETECTED_NONE;
|
1077 |
|
|
}
|
1078 |
|
|
|
1079 |
|
|
|
1080 |
|
|
static void
|
1081 |
|
|
write_irq(struct net_device *dev, int chip_type, int irq)
|
1082 |
|
|
{
|
1083 |
|
|
int i;
|
1084 |
|
|
|
1085 |
|
|
if (chip_type == CS8900) {
|
1086 |
|
|
/* Search the mapping table for the corresponding IRQ pin. */
|
1087 |
|
|
for (i = 0; i != sizeof(cs8900_irq_map)/sizeof(cs8900_irq_map[0]); i++)
|
1088 |
|
|
if (cs8900_irq_map[i] == irq)
|
1089 |
|
|
break;
|
1090 |
|
|
/* Not found */
|
1091 |
|
|
if (i == sizeof(cs8900_irq_map)/sizeof(cs8900_irq_map[0]))
|
1092 |
|
|
i = 3;
|
1093 |
|
|
writereg(dev, PP_CS8900_ISAINT, i);
|
1094 |
|
|
} else {
|
1095 |
|
|
writereg(dev, PP_CS8920_ISAINT, irq);
|
1096 |
|
|
}
|
1097 |
|
|
}
|
1098 |
|
|
|
1099 |
|
|
/* Open/initialize the board. This is called (in the current kernel)
|
1100 |
|
|
sometime after booting when the 'ifconfig' program is run.
|
1101 |
|
|
|
1102 |
|
|
This routine should set everything up anew at each open, even
|
1103 |
|
|
registers that "should" only need to be set once at boot, so that
|
1104 |
|
|
there is non-reboot way to recover if something goes wrong.
|
1105 |
|
|
*/
|
1106 |
|
|
|
1107 |
|
|
/* AKPM: do we need to do any locking here? */
|
1108 |
|
|
|
1109 |
|
|
static int
|
1110 |
|
|
net_open(struct net_device *dev)
|
1111 |
|
|
{
|
1112 |
|
|
struct net_local *lp = (struct net_local *)dev->priv;
|
1113 |
|
|
int result = 0;
|
1114 |
|
|
int i;
|
1115 |
|
|
int ret;
|
1116 |
|
|
|
1117 |
|
|
#ifndef CONFIG_SH_HICOSH4 /* uses irq#1, so this wont work */
|
1118 |
|
|
if (dev->irq < 2) {
|
1119 |
|
|
/* Allow interrupts to be generated by the chip */
|
1120 |
|
|
/* Cirrus' release had this: */
|
1121 |
|
|
#if 0
|
1122 |
|
|
writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL)|ENABLE_IRQ );
|
1123 |
|
|
#endif
|
1124 |
|
|
/* And 2.3.47 had this: */
|
1125 |
|
|
writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON);
|
1126 |
|
|
|
1127 |
|
|
for (i = 2; i < CS8920_NO_INTS; i++) {
|
1128 |
|
|
if ((1 << i) & lp->irq_map) {
|
1129 |
|
|
if (request_irq(i, net_interrupt, 0, dev->name, dev) == 0) {
|
1130 |
|
|
dev->irq = i;
|
1131 |
|
|
write_irq(dev, lp->chip_type, i);
|
1132 |
|
|
/* writereg(dev, PP_BufCFG, GENERATE_SW_INTERRUPT); */
|
1133 |
|
|
break;
|
1134 |
|
|
}
|
1135 |
|
|
}
|
1136 |
|
|
}
|
1137 |
|
|
|
1138 |
|
|
if (i >= CS8920_NO_INTS) {
|
1139 |
|
|
writereg(dev, PP_BusCTL, 0); /* disable interrupts. */
|
1140 |
|
|
printk(KERN_ERR "cs89x0: can't get an interrupt\n");
|
1141 |
|
|
ret = -EAGAIN;
|
1142 |
|
|
goto bad_out;
|
1143 |
|
|
}
|
1144 |
|
|
}
|
1145 |
|
|
else
|
1146 |
|
|
#endif
|
1147 |
|
|
{
|
1148 |
|
|
if (((1 << dev->irq) & lp->irq_map) == 0) {
|
1149 |
|
|
printk(KERN_ERR "%s: IRQ %d is not in our map of allowable IRQs, which is %x\n",
|
1150 |
|
|
dev->name, dev->irq, lp->irq_map);
|
1151 |
|
|
ret = -EAGAIN;
|
1152 |
|
|
goto bad_out;
|
1153 |
|
|
}
|
1154 |
|
|
/* FIXME: Cirrus' release had this: */
|
1155 |
|
|
writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL)|ENABLE_IRQ );
|
1156 |
|
|
/* And 2.3.47 had this: */
|
1157 |
|
|
#if 0
|
1158 |
|
|
writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON);
|
1159 |
|
|
#endif
|
1160 |
|
|
write_irq(dev, lp->chip_type, dev->irq);
|
1161 |
|
|
ret = request_irq(dev->irq, &net_interrupt, 0, dev->name, dev);
|
1162 |
|
|
if (ret) {
|
1163 |
|
|
if (net_debug)
|
1164 |
|
|
printk(KERN_DEBUG "cs89x0: request_irq(%d) failed\n", dev->irq);
|
1165 |
|
|
goto bad_out;
|
1166 |
|
|
}
|
1167 |
|
|
}
|
1168 |
|
|
|
1169 |
|
|
#if ALLOW_DMA
|
1170 |
|
|
if (lp->use_dma) {
|
1171 |
|
|
if (lp->isa_config & ANY_ISA_DMA) {
|
1172 |
|
|
unsigned long flags;
|
1173 |
|
|
lp->dma_buff = (unsigned char *)__get_dma_pages(GFP_KERNEL,
|
1174 |
|
|
get_order(lp->dmasize * 1024));
|
1175 |
|
|
|
1176 |
|
|
if (!lp->dma_buff) {
|
1177 |
|
|
printk(KERN_ERR "%s: cannot get %dK memory for DMA\n", dev->name, lp->dmasize);
|
1178 |
|
|
goto release_irq;
|
1179 |
|
|
}
|
1180 |
|
|
if (net_debug > 1) {
|
1181 |
|
|
printk( "%s: dma %lx %lx\n",
|
1182 |
|
|
dev->name,
|
1183 |
|
|
(unsigned long)lp->dma_buff,
|
1184 |
|
|
(unsigned long)virt_to_bus(lp->dma_buff));
|
1185 |
|
|
}
|
1186 |
|
|
if ((unsigned long) lp->dma_buff >= MAX_DMA_ADDRESS ||
|
1187 |
|
|
!dma_page_eq(lp->dma_buff, lp->dma_buff+lp->dmasize*1024-1)) {
|
1188 |
|
|
printk(KERN_ERR "%s: not usable as DMA buffer\n", dev->name);
|
1189 |
|
|
goto release_irq;
|
1190 |
|
|
}
|
1191 |
|
|
memset(lp->dma_buff, 0, lp->dmasize * 1024); /* Why? */
|
1192 |
|
|
if (request_dma(dev->dma, dev->name)) {
|
1193 |
|
|
printk(KERN_ERR "%s: cannot get dma channel %d\n", dev->name, dev->dma);
|
1194 |
|
|
goto release_irq;
|
1195 |
|
|
}
|
1196 |
|
|
write_dma(dev, lp->chip_type, dev->dma);
|
1197 |
|
|
lp->rx_dma_ptr = lp->dma_buff;
|
1198 |
|
|
lp->end_dma_buff = lp->dma_buff + lp->dmasize*1024;
|
1199 |
|
|
spin_lock_irqsave(&lp->lock, flags);
|
1200 |
|
|
disable_dma(dev->dma);
|
1201 |
|
|
clear_dma_ff(dev->dma);
|
1202 |
|
|
set_dma_mode(dev->dma, 0x14); /* auto_init as well */
|
1203 |
|
|
set_dma_addr(dev->dma, virt_to_bus(lp->dma_buff));
|
1204 |
|
|
set_dma_count(dev->dma, lp->dmasize*1024);
|
1205 |
|
|
enable_dma(dev->dma);
|
1206 |
|
|
spin_unlock_irqrestore(&lp->lock, flags);
|
1207 |
|
|
}
|
1208 |
|
|
}
|
1209 |
|
|
#endif /* ALLOW_DMA */
|
1210 |
|
|
|
1211 |
|
|
/* set the Ethernet address */
|
1212 |
|
|
for (i=0; i < ETH_ALEN/2; i++)
|
1213 |
|
|
writereg(dev, PP_IA+i*2, dev->dev_addr[i*2] | (dev->dev_addr[i*2+1] << 8));
|
1214 |
|
|
|
1215 |
|
|
/* while we're testing the interface, leave interrupts disabled */
|
1216 |
|
|
writereg(dev, PP_BusCTL, MEMORY_ON);
|
1217 |
|
|
|
1218 |
|
|
/* Set the LineCTL quintuplet based on adapter configuration read from EEPROM */
|
1219 |
|
|
if ((lp->adapter_cnf & A_CNF_EXTND_10B_2) && (lp->adapter_cnf & A_CNF_LOW_RX_SQUELCH))
|
1220 |
|
|
lp->linectl = LOW_RX_SQUELCH;
|
1221 |
|
|
else
|
1222 |
|
|
lp->linectl = 0;
|
1223 |
|
|
|
1224 |
|
|
/* check to make sure that they have the "right" hardware available */
|
1225 |
|
|
switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) {
|
1226 |
|
|
case A_CNF_MEDIA_10B_T: result = lp->adapter_cnf & A_CNF_10B_T; break;
|
1227 |
|
|
case A_CNF_MEDIA_AUI: result = lp->adapter_cnf & A_CNF_AUI; break;
|
1228 |
|
|
case A_CNF_MEDIA_10B_2: result = lp->adapter_cnf & A_CNF_10B_2; break;
|
1229 |
|
|
default: result = lp->adapter_cnf & (A_CNF_10B_T | A_CNF_AUI | A_CNF_10B_2);
|
1230 |
|
|
}
|
1231 |
|
|
if (!result) {
|
1232 |
|
|
printk(KERN_ERR "%s: EEPROM is configured for unavailable media\n", dev->name);
|
1233 |
|
|
release_irq:
|
1234 |
|
|
#if ALLOW_DMA
|
1235 |
|
|
release_dma_buff(lp);
|
1236 |
|
|
#endif
|
1237 |
|
|
writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) & ~(SERIAL_TX_ON | SERIAL_RX_ON));
|
1238 |
|
|
free_irq(dev->irq, dev);
|
1239 |
|
|
ret = -EAGAIN;
|
1240 |
|
|
goto bad_out;
|
1241 |
|
|
}
|
1242 |
|
|
|
1243 |
|
|
/* set the hardware to the configured choice */
|
1244 |
|
|
switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) {
|
1245 |
|
|
case A_CNF_MEDIA_10B_T:
|
1246 |
|
|
result = detect_tp(dev);
|
1247 |
|
|
if (result==DETECTED_NONE) {
|
1248 |
|
|
printk(KERN_WARNING "%s: 10Base-T (RJ-45) has no cable\n", dev->name);
|
1249 |
|
|
if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */
|
1250 |
|
|
result = DETECTED_RJ45H; /* Yes! I don't care if I see a link pulse */
|
1251 |
|
|
}
|
1252 |
|
|
break;
|
1253 |
|
|
case A_CNF_MEDIA_AUI:
|
1254 |
|
|
result = detect_aui(dev);
|
1255 |
|
|
if (result==DETECTED_NONE) {
|
1256 |
|
|
printk(KERN_WARNING "%s: 10Base-5 (AUI) has no cable\n", dev->name);
|
1257 |
|
|
if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */
|
1258 |
|
|
result = DETECTED_AUI; /* Yes! I don't care if I see a carrrier */
|
1259 |
|
|
}
|
1260 |
|
|
break;
|
1261 |
|
|
case A_CNF_MEDIA_10B_2:
|
1262 |
|
|
result = detect_bnc(dev);
|
1263 |
|
|
if (result==DETECTED_NONE) {
|
1264 |
|
|
printk(KERN_WARNING "%s: 10Base-2 (BNC) has no cable\n", dev->name);
|
1265 |
|
|
if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */
|
1266 |
|
|
result = DETECTED_BNC; /* Yes! I don't care if I can xmit a packet */
|
1267 |
|
|
}
|
1268 |
|
|
break;
|
1269 |
|
|
case A_CNF_MEDIA_AUTO:
|
1270 |
|
|
writereg(dev, PP_LineCTL, lp->linectl | AUTO_AUI_10BASET);
|
1271 |
|
|
if (lp->adapter_cnf & A_CNF_10B_T)
|
1272 |
|
|
if ((result = detect_tp(dev)) != DETECTED_NONE)
|
1273 |
|
|
break;
|
1274 |
|
|
if (lp->adapter_cnf & A_CNF_AUI)
|
1275 |
|
|
if ((result = detect_aui(dev)) != DETECTED_NONE)
|
1276 |
|
|
break;
|
1277 |
|
|
if (lp->adapter_cnf & A_CNF_10B_2)
|
1278 |
|
|
if ((result = detect_bnc(dev)) != DETECTED_NONE)
|
1279 |
|
|
break;
|
1280 |
|
|
printk(KERN_ERR "%s: no media detected\n", dev->name);
|
1281 |
|
|
goto release_irq;
|
1282 |
|
|
}
|
1283 |
|
|
switch(result) {
|
1284 |
|
|
case DETECTED_NONE:
|
1285 |
|
|
printk(KERN_ERR "%s: no network cable attached to configured media\n", dev->name);
|
1286 |
|
|
goto release_irq;
|
1287 |
|
|
case DETECTED_RJ45H:
|
1288 |
|
|
printk(KERN_INFO "%s: using half-duplex 10Base-T (RJ-45)\n", dev->name);
|
1289 |
|
|
break;
|
1290 |
|
|
case DETECTED_RJ45F:
|
1291 |
|
|
printk(KERN_INFO "%s: using full-duplex 10Base-T (RJ-45)\n", dev->name);
|
1292 |
|
|
break;
|
1293 |
|
|
case DETECTED_AUI:
|
1294 |
|
|
printk(KERN_INFO "%s: using 10Base-5 (AUI)\n", dev->name);
|
1295 |
|
|
break;
|
1296 |
|
|
case DETECTED_BNC:
|
1297 |
|
|
printk(KERN_INFO "%s: using 10Base-2 (BNC)\n", dev->name);
|
1298 |
|
|
break;
|
1299 |
|
|
}
|
1300 |
|
|
|
1301 |
|
|
/* Turn on both receive and transmit operations */
|
1302 |
|
|
writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_RX_ON | SERIAL_TX_ON);
|
1303 |
|
|
|
1304 |
|
|
/* Receive only error free packets addressed to this card */
|
1305 |
|
|
lp->rx_mode = 0;
|
1306 |
|
|
writereg(dev, PP_RxCTL, DEF_RX_ACCEPT);
|
1307 |
|
|
|
1308 |
|
|
lp->curr_rx_cfg = RX_OK_ENBL | RX_CRC_ERROR_ENBL;
|
1309 |
|
|
|
1310 |
|
|
if (lp->isa_config & STREAM_TRANSFER)
|
1311 |
|
|
lp->curr_rx_cfg |= RX_STREAM_ENBL;
|
1312 |
|
|
#if ALLOW_DMA
|
1313 |
|
|
set_dma_cfg(dev);
|
1314 |
|
|
#endif
|
1315 |
|
|
writereg(dev, PP_RxCFG, lp->curr_rx_cfg);
|
1316 |
|
|
|
1317 |
|
|
writereg(dev, PP_TxCFG, TX_LOST_CRS_ENBL | TX_SQE_ERROR_ENBL | TX_OK_ENBL |
|
1318 |
|
|
TX_LATE_COL_ENBL | TX_JBR_ENBL | TX_ANY_COL_ENBL | TX_16_COL_ENBL);
|
1319 |
|
|
|
1320 |
|
|
writereg(dev, PP_BufCFG, READY_FOR_TX_ENBL | RX_MISS_COUNT_OVRFLOW_ENBL |
|
1321 |
|
|
#if ALLOW_DMA
|
1322 |
|
|
dma_bufcfg(dev) |
|
1323 |
|
|
#endif
|
1324 |
|
|
TX_COL_COUNT_OVRFLOW_ENBL | TX_UNDERRUN_ENBL);
|
1325 |
|
|
|
1326 |
|
|
/* now that we've got our act together, enable everything */
|
1327 |
|
|
writereg(dev, PP_BusCTL, ENABLE_IRQ
|
1328 |
|
|
| (dev->mem_start?MEMORY_ON : 0) /* turn memory on */
|
1329 |
|
|
#if ALLOW_DMA
|
1330 |
|
|
| dma_busctl(dev)
|
1331 |
|
|
#endif
|
1332 |
|
|
);
|
1333 |
|
|
netif_start_queue(dev);
|
1334 |
|
|
if (net_debug > 1)
|
1335 |
|
|
printk("cs89x0: net_open() succeeded\n");
|
1336 |
|
|
return 0;
|
1337 |
|
|
bad_out:
|
1338 |
|
|
return ret;
|
1339 |
|
|
}
|
1340 |
|
|
|
1341 |
|
|
static void net_timeout(struct net_device *dev)
|
1342 |
|
|
{
|
1343 |
|
|
/* If we get here, some higher level has decided we are broken.
|
1344 |
|
|
There should really be a "kick me" function call instead. */
|
1345 |
|
|
if (net_debug > 0) printk("%s: transmit timed out, %s?\n", dev->name,
|
1346 |
|
|
tx_done(dev) ? "IRQ conflict ?" : "network cable problem");
|
1347 |
|
|
/* Try to restart the adaptor. */
|
1348 |
|
|
netif_wake_queue(dev);
|
1349 |
|
|
}
|
1350 |
|
|
|
1351 |
|
|
static int net_send_packet(struct sk_buff *skb, struct net_device *dev)
|
1352 |
|
|
{
|
1353 |
|
|
struct net_local *lp = (struct net_local *)dev->priv;
|
1354 |
|
|
|
1355 |
|
|
if (net_debug > 3) {
|
1356 |
|
|
printk("%s: sent %d byte packet of type %x\n",
|
1357 |
|
|
dev->name, skb->len,
|
1358 |
|
|
(skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]);
|
1359 |
|
|
}
|
1360 |
|
|
|
1361 |
|
|
/* keep the upload from being interrupted, since we
|
1362 |
|
|
ask the chip to start transmitting before the
|
1363 |
|
|
whole packet has been completely uploaded. */
|
1364 |
|
|
|
1365 |
|
|
spin_lock_irq(&lp->lock);
|
1366 |
|
|
netif_stop_queue(dev);
|
1367 |
|
|
|
1368 |
|
|
/* initiate a transmit sequence */
|
1369 |
|
|
writeword(dev, TX_CMD_PORT, lp->send_cmd);
|
1370 |
|
|
writeword(dev, TX_LEN_PORT, skb->len);
|
1371 |
|
|
|
1372 |
|
|
/* Test to see if the chip has allocated memory for the packet */
|
1373 |
|
|
if ((readreg(dev, PP_BusST) & READY_FOR_TX_NOW) == 0) {
|
1374 |
|
|
/*
|
1375 |
|
|
* Gasp! It hasn't. But that shouldn't happen since
|
1376 |
|
|
* we're waiting for TxOk, so return 1 and requeue this packet.
|
1377 |
|
|
*/
|
1378 |
|
|
|
1379 |
|
|
spin_unlock_irq(&lp->lock);
|
1380 |
|
|
if (net_debug) printk("cs89x0: Tx buffer not free!\n");
|
1381 |
|
|
return 1;
|
1382 |
|
|
}
|
1383 |
|
|
/* Write the contents of the packet */
|
1384 |
|
|
outsw(dev->base_addr + TX_FRAME_PORT,skb->data,(skb->len+1) >>1);
|
1385 |
|
|
spin_unlock_irq(&lp->lock);
|
1386 |
|
|
dev->trans_start = jiffies;
|
1387 |
|
|
dev_kfree_skb (skb);
|
1388 |
|
|
|
1389 |
|
|
/*
|
1390 |
|
|
* We DO NOT call netif_wake_queue() here.
|
1391 |
|
|
* We also DO NOT call netif_start_queue().
|
1392 |
|
|
*
|
1393 |
|
|
* Either of these would cause another bottom half run through
|
1394 |
|
|
* net_send_packet() before this packet has fully gone out. That causes
|
1395 |
|
|
* us to hit the "Gasp!" above and the send is rescheduled. it runs like
|
1396 |
|
|
* a dog. We just return and wait for the Tx completion interrupt handler
|
1397 |
|
|
* to restart the netdevice layer
|
1398 |
|
|
*/
|
1399 |
|
|
|
1400 |
|
|
return 0;
|
1401 |
|
|
}
|
1402 |
|
|
|
1403 |
|
|
/* The typical workload of the driver:
|
1404 |
|
|
Handle the network interface interrupts. */
|
1405 |
|
|
|
1406 |
|
|
static void net_interrupt(int irq, void *dev_id, struct pt_regs * regs)
|
1407 |
|
|
{
|
1408 |
|
|
struct net_device *dev = dev_id;
|
1409 |
|
|
struct net_local *lp;
|
1410 |
|
|
int ioaddr, status;
|
1411 |
|
|
|
1412 |
|
|
ioaddr = dev->base_addr;
|
1413 |
|
|
lp = (struct net_local *)dev->priv;
|
1414 |
|
|
|
1415 |
|
|
/* we MUST read all the events out of the ISQ, otherwise we'll never
|
1416 |
|
|
get interrupted again. As a consequence, we can't have any limit
|
1417 |
|
|
on the number of times we loop in the interrupt handler. The
|
1418 |
|
|
hardware guarantees that eventually we'll run out of events. Of
|
1419 |
|
|
course, if you're on a slow machine, and packets are arriving
|
1420 |
|
|
faster than you can read them off, you're screwed. Hasta la
|
1421 |
|
|
vista, baby! */
|
1422 |
|
|
while ((status = readword(dev, ISQ_PORT))) {
|
1423 |
|
|
if (net_debug > 4)printk("%s: event=%04x\n", dev->name, status);
|
1424 |
|
|
switch(status & ISQ_EVENT_MASK) {
|
1425 |
|
|
case ISQ_RECEIVER_EVENT:
|
1426 |
|
|
/* Got a packet(s). */
|
1427 |
|
|
net_rx(dev);
|
1428 |
|
|
break;
|
1429 |
|
|
case ISQ_TRANSMITTER_EVENT:
|
1430 |
|
|
lp->stats.tx_packets++;
|
1431 |
|
|
netif_wake_queue(dev); /* Inform upper layers. */
|
1432 |
|
|
if ((status & ( TX_OK |
|
1433 |
|
|
TX_LOST_CRS |
|
1434 |
|
|
TX_SQE_ERROR |
|
1435 |
|
|
TX_LATE_COL |
|
1436 |
|
|
TX_16_COL)) != TX_OK) {
|
1437 |
|
|
if ((status & TX_OK) == 0) lp->stats.tx_errors++;
|
1438 |
|
|
if (status & TX_LOST_CRS) lp->stats.tx_carrier_errors++;
|
1439 |
|
|
if (status & TX_SQE_ERROR) lp->stats.tx_heartbeat_errors++;
|
1440 |
|
|
if (status & TX_LATE_COL) lp->stats.tx_window_errors++;
|
1441 |
|
|
if (status & TX_16_COL) lp->stats.tx_aborted_errors++;
|
1442 |
|
|
}
|
1443 |
|
|
break;
|
1444 |
|
|
case ISQ_BUFFER_EVENT:
|
1445 |
|
|
if (status & READY_FOR_TX) {
|
1446 |
|
|
/* we tried to transmit a packet earlier,
|
1447 |
|
|
but inexplicably ran out of buffers.
|
1448 |
|
|
That shouldn't happen since we only ever
|
1449 |
|
|
load one packet. Shrug. Do the right
|
1450 |
|
|
thing anyway. */
|
1451 |
|
|
netif_wake_queue(dev); /* Inform upper layers. */
|
1452 |
|
|
}
|
1453 |
|
|
if (status & TX_UNDERRUN) {
|
1454 |
|
|
if (net_debug > 0) printk("%s: transmit underrun\n", dev->name);
|
1455 |
|
|
lp->send_underrun++;
|
1456 |
|
|
if (lp->send_underrun == 3) lp->send_cmd = TX_AFTER_381;
|
1457 |
|
|
else if (lp->send_underrun == 6) lp->send_cmd = TX_AFTER_ALL;
|
1458 |
|
|
/* transmit cycle is done, although
|
1459 |
|
|
frame wasn't transmitted - this
|
1460 |
|
|
avoids having to wait for the upper
|
1461 |
|
|
layers to timeout on us, in the
|
1462 |
|
|
event of a tx underrun */
|
1463 |
|
|
netif_wake_queue(dev); /* Inform upper layers. */
|
1464 |
|
|
}
|
1465 |
|
|
#if ALLOW_DMA
|
1466 |
|
|
if (lp->use_dma && (status & RX_DMA)) {
|
1467 |
|
|
int count = readreg(dev, PP_DmaFrameCnt);
|
1468 |
|
|
while(count) {
|
1469 |
|
|
if (net_debug > 5)
|
1470 |
|
|
printk("%s: receiving %d DMA frames\n", dev->name, count);
|
1471 |
|
|
if (net_debug > 2 && count >1)
|
1472 |
|
|
printk("%s: receiving %d DMA frames\n", dev->name, count);
|
1473 |
|
|
dma_rx(dev);
|
1474 |
|
|
if (--count == 0)
|
1475 |
|
|
count = readreg(dev, PP_DmaFrameCnt);
|
1476 |
|
|
if (net_debug > 2 && count > 0)
|
1477 |
|
|
printk("%s: continuing with %d DMA frames\n", dev->name, count);
|
1478 |
|
|
}
|
1479 |
|
|
}
|
1480 |
|
|
#endif
|
1481 |
|
|
break;
|
1482 |
|
|
case ISQ_RX_MISS_EVENT:
|
1483 |
|
|
lp->stats.rx_missed_errors += (status >>6);
|
1484 |
|
|
break;
|
1485 |
|
|
case ISQ_TX_COL_EVENT:
|
1486 |
|
|
lp->stats.collisions += (status >>6);
|
1487 |
|
|
break;
|
1488 |
|
|
}
|
1489 |
|
|
}
|
1490 |
|
|
}
|
1491 |
|
|
|
1492 |
|
|
static void
|
1493 |
|
|
count_rx_errors(int status, struct net_local *lp)
|
1494 |
|
|
{
|
1495 |
|
|
lp->stats.rx_errors++;
|
1496 |
|
|
if (status & RX_RUNT) lp->stats.rx_length_errors++;
|
1497 |
|
|
if (status & RX_EXTRA_DATA) lp->stats.rx_length_errors++;
|
1498 |
|
|
if (status & RX_CRC_ERROR) if (!(status & (RX_EXTRA_DATA|RX_RUNT)))
|
1499 |
|
|
/* per str 172 */
|
1500 |
|
|
lp->stats.rx_crc_errors++;
|
1501 |
|
|
if (status & RX_DRIBBLE) lp->stats.rx_frame_errors++;
|
1502 |
|
|
return;
|
1503 |
|
|
}
|
1504 |
|
|
|
1505 |
|
|
/* We have a good packet(s), get it/them out of the buffers. */
|
1506 |
|
|
static void
|
1507 |
|
|
net_rx(struct net_device *dev)
|
1508 |
|
|
{
|
1509 |
|
|
struct net_local *lp = (struct net_local *)dev->priv;
|
1510 |
|
|
struct sk_buff *skb;
|
1511 |
|
|
int status, length;
|
1512 |
|
|
|
1513 |
|
|
int ioaddr = dev->base_addr;
|
1514 |
|
|
status = inw(ioaddr + RX_FRAME_PORT);
|
1515 |
|
|
length = inw(ioaddr + RX_FRAME_PORT);
|
1516 |
|
|
|
1517 |
|
|
if ((status & RX_OK) == 0) {
|
1518 |
|
|
count_rx_errors(status, lp);
|
1519 |
|
|
return;
|
1520 |
|
|
}
|
1521 |
|
|
|
1522 |
|
|
/* Malloc up new buffer. */
|
1523 |
|
|
skb = dev_alloc_skb(length + 2);
|
1524 |
|
|
if (skb == NULL) {
|
1525 |
|
|
#if 0 /* Again, this seems a cruel thing to do */
|
1526 |
|
|
printk(KERN_WARNING "%s: Memory squeeze, dropping packet.\n", dev->name);
|
1527 |
|
|
#endif
|
1528 |
|
|
lp->stats.rx_dropped++;
|
1529 |
|
|
return;
|
1530 |
|
|
}
|
1531 |
|
|
skb_reserve(skb, 2); /* longword align L3 header */
|
1532 |
|
|
skb->dev = dev;
|
1533 |
|
|
|
1534 |
|
|
insw(ioaddr + RX_FRAME_PORT, skb_put(skb, length), length >> 1);
|
1535 |
|
|
if (length & 1)
|
1536 |
|
|
skb->data[length-1] = inw(ioaddr + RX_FRAME_PORT);
|
1537 |
|
|
|
1538 |
|
|
if (net_debug > 3) {
|
1539 |
|
|
printk( "%s: received %d byte packet of type %x\n",
|
1540 |
|
|
dev->name, length,
|
1541 |
|
|
(skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]);
|
1542 |
|
|
}
|
1543 |
|
|
|
1544 |
|
|
skb->protocol=eth_type_trans(skb,dev);
|
1545 |
|
|
netif_rx(skb);
|
1546 |
|
|
dev->last_rx = jiffies;
|
1547 |
|
|
lp->stats.rx_packets++;
|
1548 |
|
|
lp->stats.rx_bytes += length;
|
1549 |
|
|
}
|
1550 |
|
|
|
1551 |
|
|
#if ALLOW_DMA
|
1552 |
|
|
static void release_dma_buff(struct net_local *lp)
|
1553 |
|
|
{
|
1554 |
|
|
if (lp->dma_buff) {
|
1555 |
|
|
free_pages((unsigned long)(lp->dma_buff), get_order(lp->dmasize * 1024));
|
1556 |
|
|
lp->dma_buff = 0;
|
1557 |
|
|
}
|
1558 |
|
|
}
|
1559 |
|
|
#endif
|
1560 |
|
|
|
1561 |
|
|
/* The inverse routine to net_open(). */
|
1562 |
|
|
static int
|
1563 |
|
|
net_close(struct net_device *dev)
|
1564 |
|
|
{
|
1565 |
|
|
struct net_local *lp = (struct net_local *)dev->priv;
|
1566 |
|
|
|
1567 |
|
|
netif_stop_queue(dev);
|
1568 |
|
|
|
1569 |
|
|
writereg(dev, PP_RxCFG, 0);
|
1570 |
|
|
writereg(dev, PP_TxCFG, 0);
|
1571 |
|
|
writereg(dev, PP_BufCFG, 0);
|
1572 |
|
|
writereg(dev, PP_BusCTL, 0);
|
1573 |
|
|
|
1574 |
|
|
free_irq(dev->irq, dev);
|
1575 |
|
|
|
1576 |
|
|
#if ALLOW_DMA
|
1577 |
|
|
if (lp->use_dma && lp->dma) {
|
1578 |
|
|
free_dma(dev->dma);
|
1579 |
|
|
release_dma_buff(lp);
|
1580 |
|
|
}
|
1581 |
|
|
#endif
|
1582 |
|
|
|
1583 |
|
|
/* Update the statistics here. */
|
1584 |
|
|
return 0;
|
1585 |
|
|
}
|
1586 |
|
|
|
1587 |
|
|
/* Get the current statistics. This may be called with the card open or
|
1588 |
|
|
closed. */
|
1589 |
|
|
static struct net_device_stats *
|
1590 |
|
|
net_get_stats(struct net_device *dev)
|
1591 |
|
|
{
|
1592 |
|
|
struct net_local *lp = (struct net_local *)dev->priv;
|
1593 |
|
|
unsigned long flags;
|
1594 |
|
|
|
1595 |
|
|
spin_lock_irqsave(&lp->lock, flags);
|
1596 |
|
|
/* Update the statistics from the device registers. */
|
1597 |
|
|
lp->stats.rx_missed_errors += (readreg(dev, PP_RxMiss) >> 6);
|
1598 |
|
|
lp->stats.collisions += (readreg(dev, PP_TxCol) >> 6);
|
1599 |
|
|
spin_unlock_irqrestore(&lp->lock, flags);
|
1600 |
|
|
|
1601 |
|
|
return &lp->stats;
|
1602 |
|
|
}
|
1603 |
|
|
|
1604 |
|
|
static void set_multicast_list(struct net_device *dev)
|
1605 |
|
|
{
|
1606 |
|
|
struct net_local *lp = (struct net_local *)dev->priv;
|
1607 |
|
|
unsigned long flags;
|
1608 |
|
|
|
1609 |
|
|
spin_lock_irqsave(&lp->lock, flags);
|
1610 |
|
|
if(dev->flags&IFF_PROMISC)
|
1611 |
|
|
{
|
1612 |
|
|
lp->rx_mode = RX_ALL_ACCEPT;
|
1613 |
|
|
}
|
1614 |
|
|
else if((dev->flags&IFF_ALLMULTI)||dev->mc_list)
|
1615 |
|
|
{
|
1616 |
|
|
/* The multicast-accept list is initialized to accept-all, and we
|
1617 |
|
|
rely on higher-level filtering for now. */
|
1618 |
|
|
lp->rx_mode = RX_MULTCAST_ACCEPT;
|
1619 |
|
|
}
|
1620 |
|
|
else
|
1621 |
|
|
lp->rx_mode = 0;
|
1622 |
|
|
|
1623 |
|
|
writereg(dev, PP_RxCTL, DEF_RX_ACCEPT | lp->rx_mode);
|
1624 |
|
|
|
1625 |
|
|
/* in promiscuous mode, we accept errored packets, so we have to enable interrupts on them also */
|
1626 |
|
|
writereg(dev, PP_RxCFG, lp->curr_rx_cfg |
|
1627 |
|
|
(lp->rx_mode == RX_ALL_ACCEPT? (RX_CRC_ERROR_ENBL|RX_RUNT_ENBL|RX_EXTRA_DATA_ENBL) : 0));
|
1628 |
|
|
spin_unlock_irqrestore(&lp->lock, flags);
|
1629 |
|
|
}
|
1630 |
|
|
|
1631 |
|
|
|
1632 |
|
|
static int set_mac_address(struct net_device *dev, void *p)
|
1633 |
|
|
{
|
1634 |
|
|
int i;
|
1635 |
|
|
struct sockaddr *addr = p;
|
1636 |
|
|
|
1637 |
|
|
|
1638 |
|
|
if (netif_running(dev))
|
1639 |
|
|
return -EBUSY;
|
1640 |
|
|
|
1641 |
|
|
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
|
1642 |
|
|
|
1643 |
|
|
if (net_debug) {
|
1644 |
|
|
printk("%s: Setting MAC address to ", dev->name);
|
1645 |
|
|
for (i = 0; i < dev->addr_len; i++)
|
1646 |
|
|
printk(" %2.2x", dev->dev_addr[i]);
|
1647 |
|
|
printk(".\n");
|
1648 |
|
|
}
|
1649 |
|
|
/* set the Ethernet address */
|
1650 |
|
|
for (i=0; i < ETH_ALEN/2; i++)
|
1651 |
|
|
writereg(dev, PP_IA+i*2, dev->dev_addr[i*2] | (dev->dev_addr[i*2+1] << 8));
|
1652 |
|
|
|
1653 |
|
|
return 0;
|
1654 |
|
|
}
|
1655 |
|
|
|
1656 |
|
|
#ifdef MODULE
|
1657 |
|
|
|
1658 |
|
|
static struct net_device dev_cs89x0 = {
|
1659 |
|
|
"",
|
1660 |
|
|
0, 0, 0, 0,
|
1661 |
|
|
0, 0,
|
1662 |
|
|
0, 0, 0, NULL, NULL };
|
1663 |
|
|
|
1664 |
|
|
/*
|
1665 |
|
|
* Support the 'debug' module parm even if we're compiled for non-debug to
|
1666 |
|
|
* avoid breaking someone's startup scripts
|
1667 |
|
|
*/
|
1668 |
|
|
|
1669 |
|
|
static int io;
|
1670 |
|
|
static int irq;
|
1671 |
|
|
static int debug;
|
1672 |
|
|
static char media[8];
|
1673 |
|
|
static int duplex=-1;
|
1674 |
|
|
|
1675 |
|
|
static int use_dma; /* These generate unused var warnings if ALLOW_DMA = 0 */
|
1676 |
|
|
static int dma;
|
1677 |
|
|
static int dmasize=16; /* or 64 */
|
1678 |
|
|
|
1679 |
|
|
MODULE_PARM(io, "i");
|
1680 |
|
|
MODULE_PARM(irq, "i");
|
1681 |
|
|
MODULE_PARM(debug, "i");
|
1682 |
|
|
MODULE_PARM(media, "c8");
|
1683 |
|
|
MODULE_PARM(duplex, "i");
|
1684 |
|
|
MODULE_PARM(dma , "i");
|
1685 |
|
|
MODULE_PARM(dmasize , "i");
|
1686 |
|
|
MODULE_PARM(use_dma , "i");
|
1687 |
|
|
MODULE_PARM_DESC(io, "cs89x0 I/O base address");
|
1688 |
|
|
MODULE_PARM_DESC(irq, "cs89x0 IRQ number");
|
1689 |
|
|
#if DEBUGGING
|
1690 |
|
|
MODULE_PARM_DESC(debug, "cs89x0 debug level (0-6)");
|
1691 |
|
|
#else
|
1692 |
|
|
MODULE_PARM_DESC(debug, "(ignored)");
|
1693 |
|
|
#endif
|
1694 |
|
|
MODULE_PARM_DESC(media, "Set cs89x0 adapter(s) media type(s) (rj45,bnc,aui)");
|
1695 |
|
|
/* No other value than -1 for duplex seems to be currently interpreted */
|
1696 |
|
|
MODULE_PARM_DESC(duplex, "(ignored)");
|
1697 |
|
|
#if ALLOW_DMA
|
1698 |
|
|
MODULE_PARM_DESC(dma , "cs89x0 ISA DMA channel; ignored if use_dma=0");
|
1699 |
|
|
MODULE_PARM_DESC(dmasize , "cs89x0 DMA size in kB (16,64); ignored if use_dma=0");
|
1700 |
|
|
MODULE_PARM_DESC(use_dma , "cs89x0 using DMA (0-1)");
|
1701 |
|
|
#else
|
1702 |
|
|
MODULE_PARM_DESC(dma , "(ignored)");
|
1703 |
|
|
MODULE_PARM_DESC(dmasize , "(ignored)");
|
1704 |
|
|
MODULE_PARM_DESC(use_dma , "(ignored)");
|
1705 |
|
|
#endif
|
1706 |
|
|
|
1707 |
|
|
MODULE_AUTHOR("Mike Cruse, Russwll Nelson <nelson@crynwr.com>, Andrew Morton <andrewm@uow.edu.au>");
|
1708 |
|
|
MODULE_LICENSE("GPL");
|
1709 |
|
|
|
1710 |
|
|
|
1711 |
|
|
EXPORT_NO_SYMBOLS;
|
1712 |
|
|
|
1713 |
|
|
/*
|
1714 |
|
|
* media=t - specify media type
|
1715 |
|
|
or media=2
|
1716 |
|
|
or media=aui
|
1717 |
|
|
or medai=auto
|
1718 |
|
|
* duplex=0 - specify forced half/full/autonegotiate duplex
|
1719 |
|
|
* debug=# - debug level
|
1720 |
|
|
|
1721 |
|
|
|
1722 |
|
|
* Default Chip Configuration:
|
1723 |
|
|
* DMA Burst = enabled
|
1724 |
|
|
* IOCHRDY Enabled = enabled
|
1725 |
|
|
* UseSA = enabled
|
1726 |
|
|
* CS8900 defaults to half-duplex if not specified on command-line
|
1727 |
|
|
* CS8920 defaults to autoneg if not specified on command-line
|
1728 |
|
|
* Use reset defaults for other config parameters
|
1729 |
|
|
|
1730 |
|
|
* Assumptions:
|
1731 |
|
|
* media type specified is supported (circuitry is present)
|
1732 |
|
|
* if memory address is > 1MB, then required mem decode hw is present
|
1733 |
|
|
* if 10B-2, then agent other than driver will enable DC/DC converter
|
1734 |
|
|
(hw or software util)
|
1735 |
|
|
|
1736 |
|
|
|
1737 |
|
|
*/
|
1738 |
|
|
|
1739 |
|
|
int
|
1740 |
|
|
init_module(void)
|
1741 |
|
|
{
|
1742 |
|
|
struct net_local *lp;
|
1743 |
|
|
int ret = 0;
|
1744 |
|
|
|
1745 |
|
|
#if DEBUGGING
|
1746 |
|
|
net_debug = debug;
|
1747 |
|
|
#else
|
1748 |
|
|
debug = 0;
|
1749 |
|
|
#endif
|
1750 |
|
|
|
1751 |
|
|
dev_cs89x0.irq = irq;
|
1752 |
|
|
dev_cs89x0.base_addr = io;
|
1753 |
|
|
|
1754 |
|
|
dev_cs89x0.init = cs89x0_probe;
|
1755 |
|
|
dev_cs89x0.priv = kmalloc(sizeof(struct net_local), GFP_KERNEL);
|
1756 |
|
|
if (dev_cs89x0.priv == 0) {
|
1757 |
|
|
printk(KERN_ERR "cs89x0.c: Out of memory.\n");
|
1758 |
|
|
return -ENOMEM;
|
1759 |
|
|
}
|
1760 |
|
|
memset(dev_cs89x0.priv, 0, sizeof(struct net_local));
|
1761 |
|
|
lp = (struct net_local *)dev_cs89x0.priv;
|
1762 |
|
|
|
1763 |
|
|
#if ALLOW_DMA
|
1764 |
|
|
if (use_dma) {
|
1765 |
|
|
lp->use_dma = use_dma;
|
1766 |
|
|
lp->dma = dma;
|
1767 |
|
|
lp->dmasize = dmasize;
|
1768 |
|
|
}
|
1769 |
|
|
#endif
|
1770 |
|
|
|
1771 |
|
|
spin_lock_init(&lp->lock);
|
1772 |
|
|
|
1773 |
|
|
/* boy, they'd better get these right */
|
1774 |
|
|
if (!strcmp(media, "rj45"))
|
1775 |
|
|
lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T;
|
1776 |
|
|
else if (!strcmp(media, "aui"))
|
1777 |
|
|
lp->adapter_cnf = A_CNF_MEDIA_AUI | A_CNF_AUI;
|
1778 |
|
|
else if (!strcmp(media, "bnc"))
|
1779 |
|
|
lp->adapter_cnf = A_CNF_MEDIA_10B_2 | A_CNF_10B_2;
|
1780 |
|
|
else
|
1781 |
|
|
lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T;
|
1782 |
|
|
|
1783 |
|
|
if (duplex==-1)
|
1784 |
|
|
lp->auto_neg_cnf = AUTO_NEG_ENABLE;
|
1785 |
|
|
|
1786 |
|
|
if (io == 0) {
|
1787 |
|
|
printk(KERN_ERR "cs89x0.c: Module autoprobing not allowed.\n");
|
1788 |
|
|
printk(KERN_ERR "cs89x0.c: Append io=0xNNN\n");
|
1789 |
|
|
ret = -EPERM;
|
1790 |
|
|
goto out;
|
1791 |
|
|
}
|
1792 |
|
|
|
1793 |
|
|
#if ALLOW_DMA
|
1794 |
|
|
if (use_dma && dmasize != 16 && dmasize != 64) {
|
1795 |
|
|
printk(KERN_ERR "cs89x0.c: dma size must be either 16K or 64K, not %dK\n", dmasize);
|
1796 |
|
|
ret = -EPERM;
|
1797 |
|
|
goto out;
|
1798 |
|
|
}
|
1799 |
|
|
#endif
|
1800 |
|
|
|
1801 |
|
|
if (register_netdev(&dev_cs89x0) != 0) {
|
1802 |
|
|
printk(KERN_ERR "cs89x0.c: No card found at 0x%x\n", io);
|
1803 |
|
|
ret = -ENXIO;
|
1804 |
|
|
goto out;
|
1805 |
|
|
}
|
1806 |
|
|
out:
|
1807 |
|
|
if (ret)
|
1808 |
|
|
kfree(dev_cs89x0.priv);
|
1809 |
|
|
return ret;
|
1810 |
|
|
}
|
1811 |
|
|
|
1812 |
|
|
void
|
1813 |
|
|
cleanup_module(void)
|
1814 |
|
|
{
|
1815 |
|
|
if (dev_cs89x0.priv != NULL) {
|
1816 |
|
|
/* Free up the private structure, or leak memory :-) */
|
1817 |
|
|
unregister_netdev(&dev_cs89x0);
|
1818 |
|
|
outw(PP_ChipID, dev_cs89x0.base_addr + ADD_PORT);
|
1819 |
|
|
kfree(dev_cs89x0.priv);
|
1820 |
|
|
dev_cs89x0.priv = NULL; /* gets re-allocated by cs89x0_probe1 */
|
1821 |
|
|
/* If we don't do this, we can't re-insmod it later. */
|
1822 |
|
|
release_region(dev_cs89x0.base_addr, NETCARD_IO_EXTENT);
|
1823 |
|
|
}
|
1824 |
|
|
}
|
1825 |
|
|
#endif /* MODULE */
|
1826 |
|
|
|
1827 |
|
|
/*
|
1828 |
|
|
* Local variables:
|
1829 |
|
|
* version-control: t
|
1830 |
|
|
* kept-new-versions: 5
|
1831 |
|
|
* c-indent-level: 8
|
1832 |
|
|
* tab-width: 8
|
1833 |
|
|
* End:
|
1834 |
|
|
*
|
1835 |
|
|
*/
|